The sign for "which" in American Sign Language (ASL) is a fundamental building block for any beginner or intermediate signer. It is primarily used when a person needs to select one or more options from a specific, known set. While the physical movement might seem simple, executing it with the correct handshape, rhythm, and facial grammar is what distinguishes a fluent signer from a novice.

To perform the sign for "which," begin with both hands in front of the torso, held in the "A" handshape with the thumbs pointing upward. The hands move in an alternating up-and-down vertical motion. Crucially, as this is a "WH-question," the eyebrows must be furrowed (lowered) throughout the duration of the sign to signal to the observer that a question is being asked.

Physical Parameters of the WHICH Sign

To master this sign, one must break it down into the five linguistic parameters of ASL: handshape, location, movement, orientation, and non-manual markers.

Correct Handshape for WHICH

The handshape used for "which" is the "A" handshape. To form this, make a fist with all fingers folded into the palm. However, in the context of the "which" sign, many fluent signers prefer a "loose A" shape. This means the thumb is not tightly pressed against the index finger but remains extended upward, parallel to the imaginary vertical line of the hand.

In our practical experience with teaching ASL, the "loose A" handshape allows for a more fluid movement and prevents the hands from looking stiff or robotic. Beginners often make the mistake of tucking the thumb too far forward, which can make the sign look like a variation of "STAY" or "WITH" if the movement isn't precise.

Location and Orientation

The sign is performed in the "neutral space" directly in front of the chest or stomach. The palms should face inward, toward each other, or slightly toward the signer's body. The hands should be roughly shoulder-width apart or slightly narrower to maintain a natural signing frame. If the hands are held too far apart, the visual focus of the conversation partner is disrupted; if they are too close, the alternating movement becomes cluttered.

The Alternating Movement

The movement for "which" is vertical and alternating. As the right hand moves up, the left hand moves down, and vice versa. This mimics the visual concept of a balance scale, weighing two or more options against each other.

The movement should be repeated at least two to three times. A single movement can sometimes be misinterpreted as a different sign or a hesitation. In more formal settings, the movement is often more controlled and deliberate, while in casual conversation, it may be faster and more compact.

The Importance of Non-Manual Markers (NMMs)

One of the most common errors for new ASL learners is focusing entirely on the hands and ignoring the face. In ASL, the face provides the "intonation" that the voice provides in spoken English.

The Wh-Face

Because "which" is a "WH-type" question (joining the ranks of who, what, where, when, and why), it requires a specific facial expression often called the "Wh-face." This involves:

  1. Furrowed Eyebrows: Lowering the eyebrows toward the nose.
  2. Slight Head Tilt: Often, signers will lean their head slightly forward or to the side.
  3. Direct Eye Contact: Maintaining a steady gaze with the conversation partner.

Without these facial markers, the sign for "which" could be interpreted as a statement like "I don't care which," or it might simply look like an incomplete gesture. In my observations of fluent Deaf signers, the furrowed brow often begins slightly before the hand movement and remains until the person being questioned begins to respond.

When Not to Furrow the Brows

There is one specific exception to the furrowed brow rule. If a person is making a statement rather than asking a question—for example, signing "I don't know which one"—the eyebrows should remain neutral or even be raised if expressing uncertainty. The facial grammar must match the intent of the sentence.

Grammatical Placement of WHICH in a Sentence

ASL grammar differs significantly from English word order. In English, we typically place the question word at the beginning: "Which color do you like?" In ASL, the question word is frequently placed at the end of the sentence to follow a "Topic-Comment" or "Subject-Verb-Object-Question" structure.

Sentence Structure Examples

Instead of following English syntax, a fluent signer would likely use one of the following structures:

  • Structure: [Topic] + [Question]
  • Example: COLOR YOU LIKE WHICH? (You like which color?)
  • Structure: [Option A] + [Option B] + [Question]
  • Example: MILK, JUICE, YOU WANT WHICH? (Do you want milk or juice?)

Placing "which" at the end allows the signer to set up the context (the topic) first, so the listener knows exactly what choice is being presented before the "which" sign prompts them for a decision.

Which vs. What: Understanding the Semantic Difference

In English, "which" and "what" are sometimes interchangeable, but in ASL, there is a distinct visual logic behind choosing one over the other.

When to Use WHICH

Use the "which" sign when the options are limited or have already been established in the conversation. If a person is holding two shirts and asks for a preference, "which" is the correct sign. It implies a selection from a specific set.

When to Use WHAT

Use the "what" sign (hands open, palms up, shaking slightly) for general, open-ended questions where the possibilities are virtually limitless. If a person asks, "What do you want for your birthday?" without suggesting specific gifts, "what" is the appropriate choice.

If a signer uses "which" in an open-ended context, it can feel confusing to a native signer, as it implies there is a hidden list of choices they are supposed to be aware of.

Succinct Signing: The Role of Body Shifting

In many cases, a fluent signer might not even use the manual sign for "which." ASL is a highly efficient language that utilizes the signing space to convey complex ideas quickly.

Using Contrastive Structure

When presenting two options, a signer can use "Body Shifting" (also known as contrastive structure). For example, to ask if someone wants tea or coffee:

  1. Shift the body slightly to the left and sign "TEA."
  2. Shift the body slightly to the right and sign "COFFEE."
  3. Return to the center, furrow the eyebrows, and pause.

The pause with the furrowed eyebrows conveys the meaning of "which" without the hands ever performing the "A-handshape" movement. This is considered a "succinct" way of asking the question. Beginners should learn the manual sign first, but understanding body shifting is essential for moving toward conversational fluency.

Common Mistakes to Avoid

Through years of monitoring ASL students, several recurring mistakes have been identified regarding the "which" sign.

1. Moving Hands Simultaneously

Many beginners move both hands up and down at the same time. This looks more like a "pumping" gesture and lacks the rhythmic clarity of the alternating movement. The alternating motion is what visually represents the "choice" between one side and the other.

2. Excessive Vertical Range

Some signers move their hands from their waist all the way up to their shoulders. This is unnecessary and tiring. The movement should be small and efficient—usually only 3 to 5 inches of vertical travel.

3. Forgetting the Topic

Beginners often sign "WHICH YOU WANT?" without first establishing what "it" is. In a visual language, clarity is paramount. Always establish the items being compared (either through signs or by pointing/indexing) before using the "which" sign.

4. Incorrect Thumb Positioning

As mentioned earlier, some learners tuck their thumbs inside their fingers (an "S" handshape). This changes the sign entirely. Ensure the thumbs are pointed up to maintain the correct "A" handshape.

Practice Drills for Mastery

To improve the speed and accuracy of the "which" sign, try these specific exercises:

The Alternating Rhythm Drill

Stand in front of a mirror. Close your eyes and perform the "which" sign. Focus on the feeling of your hands. One should be at the peak of its movement while the other is at the trough. Open your eyes and check for symmetry. Are your hands at the same height? Is the movement jerky or smooth?

The WH-Question Chain

Practice switching between different WH-questions to build muscle memory. Sign: WHO -> WHERE -> WHICH -> WHAT -> WHY. Pay close attention to how your facial expression remains similar while your hands change shapes. This helps in maintaining "facial consistency," which is vital for long conversations.

Spatial Mapping Practice

Imagine there are two objects on a table in front of you. Point to the left (Item A), point to the right (Item B), then sign "WHICH." This integrates spatial awareness with the manual sign.

Cultural Context: Visual Logic in the Deaf Community

The "which" sign is a perfect example of the "visual logic" that permeates Deaf culture. The alternating hands literally look like the process of comparing two items. In the Deaf community, communication is direct and visually clear. Using "which" effectively means you are providing your conversation partner with a clear visual prompt to make a decision.

Furthermore, in Deaf social environments, the "which" sign is often used to facilitate group decisions. For example, at a restaurant, a leader might sign "EAT, CHAT, WHICH?" to decide the order of the evening. It is a sign that promotes inclusivity and consensus by clearly defining the options on the table.

Other Meanings of "ASL" in Modern Communication

While this article focuses on American Sign Language, it is important to acknowledge that the acronym "ASL" is used differently in digital spaces, as noted in various internet lexicons.

"As Hell" (Slang)

On social media platforms like TikTok, X (Twitter), and Instagram, "asl" is frequently used as a lowercase intensifier standing for "as hell." For example, someone might write "I'm hungry asl" or "That's funny asl." In this context, it has no relation to sign language. You can distinguish this usage by its placement (usually at the end of a sentence) and the lack of capitalization.

"Age, Sex, Location" (Legacy Slang)

In the era of early internet chat rooms (AIM, mIRC), "ASL?" was the standard greeting to ask for a stranger's personal details. While largely outdated today, it still occasionally appears in certain online forums.

If the context involves learning, communication, or the Deaf community, "ASL" invariably refers to American Sign Language.

Summary of the WHICH Sign

To sign "which" correctly, remember the "Three Pillars":

  1. The Shape: Loose "A" handshapes with thumbs up.
  2. The Motion: Alternating vertical movement in front of the chest.
  3. The Face: Furrowed eyebrows to indicate a question.

By placing this sign at the end of your sentence and combining it with clear topic establishment, you will communicate much more effectively with ASL users.

FAQ

Does the "which" sign vary by region?

While the core "A-handshape" and alternating movement are standard across North America, some regional dialects may have slight variations in the speed or the height of the movement. However, the version described here is universally understood in the ASL-speaking world.

Can I use just one hand for "which"?

Generally, "which" is a two-handed sign. Using only one hand might be understood in very casual, "lazy" signing contexts (like if you are holding a coffee cup in the other hand), but it is not the standard form and should be avoided by learners.

How do I sign "which one" specifically?

You can sign "WHICH" followed by the sign for "ONE" (index finger up, palm inward). However, in most cases, signing "WHICH" by itself already implies "which one" or "which ones," so adding the sign for "ONE" is often redundant unless you are being very specific.

Is "which" used for "either/or" statements?

For "either/or" statements, ASL often uses the sign for "BOTH" or simply uses body shifting. If you are saying "You can have either," you would not typically use the "which" sign, as "which" is primarily interrogative (asking a question).

What if I can't furrow my eyebrows well?

Facial flexibility is a skill that ASL students must develop. Practice in the mirror. It may feel exaggerated at first, but for a Deaf person, those facial movements are as clear as the tone of a voice. Without them, your ASL "voice" sounds monotone.