How to Sign "Once"

Hold your non-dominant hand flat in front of you with the palm facing up. Form a "1" handshape with your dominant hand, extending just your index finger. Quickly strike the palm of your non-dominant hand with your dominant index finger, pulling it upward and slightly toward yourself in a single, sharp motion.

Examples Using "Once" in a Sentence

1

I have only been there once.

Sign "once" to emphasize the single occurrence. Point to yourself for "I", sign "finish" or "touch" for the experience, point to the location, and then use the sharp, single strike of the "once" sign.

2

Take this medicine once a day.

Here, "once" indicates frequency. Sign "medicine", then "once", followed by "day". Ensure the movement for "once" is a single, distinct tap and pull to clearly mean exactly one time.

3

I told you once already!

Use a firm facial expression to show frustration. Sign "I", "tell", "you", and then sign "once" with a slightly more forceful strike and pull to emphasize that you have already said it.

How to Sign "Once"
Hold your non-dominant hand flat in front of you with the palm facing up. Form a "1" handshape with your dominant hand, extending just your index finger. Quickly strike the palm of your non-dominant hand with your dominant index finger, pulling it upward and slightly toward yourself in a single, sharp motion.
Visual Logic(Etymology)
The sign for "once" is highly visual and literal. The flat non-dominant hand acts as a base or a surface representing time or an event log. The dominant hand uses the "1" handshape to represent the number one. Striking the base a single time perfectly illustrates an event happening exactly one time.
Signing Tips
Make sure the movement is a quick, single strike. The dominant index finger should bounce off the non-dominant palm and move upward and backward toward your body. Keeping the motion sharp and distinct helps differentiate it from other signs that use similar handshapes.
Common Mistakes
A common mistake is repeating the striking motion. If you tap the palm multiple times or brush against it repeatedly, it changes the meaning of the sign entirely, often looking more like "sometimes." Always ensure "once" is just a single, clean tap and pull.
Regional Variations
This sign is widely used and understood across the ASL community with minimal regional variation.
Examples Using "Once" in a Sentence
1

I have only been there once.

Sign "once" to emphasize the single occurrence. Point to yourself for "I", sign "finish" or "touch" for the experience, point to the location, and then use the sharp, single strike of the "once" sign.

2

Take this medicine once a day.

Here, "once" indicates frequency. Sign "medicine", then "once", followed by "day". Ensure the movement for "once" is a single, distinct tap and pull to clearly mean exactly one time.

3

I told you once already!

Use a firm facial expression to show frustration. Sign "I", "tell", "you", and then sign "once" with a slightly more forceful strike and pull to emphasize that you have already said it.

Frequently Asked Questions
What is the difference between the signs for 'once' and 'sometimes'?

The sign for 'once' uses a single, sharp strike against the palm, pulling upward and backward. 'Sometimes' uses the same handshapes but involves a repeated, circular brushing motion against the palm.

Can I use this sign for 'once upon a time'?

No, 'once upon a time' or 'a long time ago' uses a different sign where the dominant hand moves backward over the shoulder to indicate the distant past. The sign for 'once' strictly means a frequency of 'one time.'

Does it matter which hand I use as the base?

Yes, you should always use your non-dominant hand as the flat base. Your dominant hand (the one you write with) should be the active hand forming the '1' handshape and making the striking motion.

ASL is a beautiful, expressive language. Practice regularly and have fun!