How to Sign the Letter A in ASL

To sign the letter A in American Sign Language (ASL), make a fist with your dominant hand and rest your thumb straight up along the side of your index finger. Hold the hand still near your shoulder with your palm facing the person you are signing to. The letter A has no movement.

Which "A" do you mean?

This guide covers the fingerspelled letter A in ASL, which is used in the United States and parts of Canada. Two other meanings would change the answer.

• The English word "a": ASL generally does not sign articles like "a" or "the." Signers usually leave the word out or express the meaning another way, for example by signing ONE when the number matters. Fingerspelling the letter A does not translate the word "a."
• Other sign languages: Sign languages differ by country. British Sign Language, for example, uses a two-handed alphabet in which A is shown by touching the thumb of the non-dominant hand with the index finger of the dominant hand. The ASL handshape below does not apply there.

Step-by-step: forming the ASL letter A

• 1. Use your dominant hand, the one you write with. Left-handed signers use the left hand.
• 2. Curl all four fingers into your palm to make a relaxed fist.
• 3. Place your thumb against the side of your index finger, pointing up. Do not tuck it under or wrap it across your fingers.
• 4. Turn your palm forward, toward the person watching.
• 5. Hold your hand at about shoulder height, slightly to the side of your face or chin.
• 6. Keep the hand still. A is a static handshape.

Telling A apart from similar letters

Several ASL letters start from a closed hand, and the thumb position is what tells them apart. If the other person reads your A as a different letter, check your thumb first.

Letter | Thumb position | Fingers

A | Alongside the index finger, pointing up | Curled into a fist

S | Wrapped across the front of the curled fingers | Curled into a fist

E | Tucked under the fingertips | Bent down so the tips rest on or above the thumb

T | Tucked between the index and middle fingers | Curled into a fist

M | Tucked under the index, middle and ring fingers | Folded over the thumb

N | Tucked under the index and middle fingers | Folded over the thumb

Checking your A on camera

If you are practicing in front of a webcam or will fingerspell on a video call, you can use the self-view to check your handshape. Two separate things have to work. First, the browser or app needs permission to use the camera. Second, the video has to be clear enough for someone to read the handshape. A working camera preview does not guarantee the other person sees a clear image, because the call connection can blur or freeze fast hand detail.

• Framing: Keep your hand, shoulders and face in the frame. Fingerspelling happens near the shoulder, so a tight face-only crop can cut it off.
• Lighting: Light your hand from the front. A bright window behind you can turn your hand into a dark silhouette and hide the thumb.
• Background: A plain physical background that contrasts with your skin tone makes the thumb and fingers easier to see. Virtual or blurred background effects can clip or smear the edges of a moving hand, so turn them off if the edges of your hand look wrong in the preview.
• Mirroring: Many apps flip your self-view like a mirror, while the other person may see the image unflipped. Your handshape is still correct, but your hand may appear on the opposite side in your own preview. Check your app's video settings if this is confusing.
• Steadiness: Hold the A still for a moment so it can be read clearly over the connection.

How to verify the result

• Look at your hand from the viewer's side, either in the camera preview or in a mirror. You should see the backs of your curled fingers and the thumb standing up along the side.
• Confirm the thumb is visible and pointing up, not hidden behind or under the fingers.
• Compare your hand with the table above to rule out S, E and T.
• If possible, ask a fluent signer or ASL instructor to watch. Feedback from a person catches problems that self-checking can miss.

Limitations of this guide

A written description cannot show the natural tension, angle and rhythm of fingerspelling the way video of a fluent signer can. No specific instructional source or video was reviewed for this article. To build fluency beyond single letters, learn from Deaf instructors or established ASL courses, where you can see letters in context and get corrections.