Sign vs Wave

When to use each in English, with meaning, register, and examples.

Sign

Top 1,000 (very common)A2noun

Wave

Top 1,000 (very common)A2noun
 SignWave
Pronunciation🇬🇧 /["/saɪn/"]/🇺🇸 /["/saɪn/"]/🇬🇧 /["/weɪv/"]/🇺🇸 /["/weɪv/"]/
MeaningA symbol or action that shows something or gives information.To move your hand back and forth to greet someone or say goodbye.
ExamplePlease follow the sign to reach the train station.The wave crashed onto the shore, creating a beautiful splash.
RegisterNeutralNeutral
How commonTop 1,000 (very common)Top 1,000 (very common)
CEFR levelA2A2
Part of speechnounnoun
Collocationsclassic, clear, definite, bear, have, betray, appear, come, indicate something, at a/​the sign, sign from, sign of, sign of life, a sign of the times, a sign of things to come, flashing, illuminated, neon, erect, hang, hang out, read something, announce something, proclaim something, sign for, sign to, rude, peace, thumbs-up, give (somebody), make, communicate through, language, system, sign for, make the sign of the cross, dollar, euro, pound, draw, use, mean something, sign for, birth, star, astrological, be born under, sign of, the signs of the Zodiacbig, enormous, giant, ride, surf, catch, rise, break, fall, energy, power, in the waves, on the waves, the crash of the waves, the crashing of the waves, the lap of the waves, acoustic, electromagnetic, gravitational, emit, generate, deflect, travel, bounce off something, quick, little, slight, give (somebody), return, with a wave, wave of, big, enormous, great, send, cause, create, sweep something, sweep over something, wash over somebody/​something, wave of, on a wave
Antonymsignore, disregardignore, snub
Common mistakesConfused with 'sine' in mathematical contexts., Using 'sign' as a verb incorrectly, e.g., 'I will sign that paper' without indicating what or who to sign., Misusing 'sign' for 'symbol' when differentiating context.Confused with 'waver', which means to hesitate., Using 'waved' instead of 'wave' in present tense contexts., Not understanding that it can also refer to water motions.
Usage notesUsed in various contexts like directing people, indicating information, or marking something. More formal in legal contexts, and informal in everyday signage.Used in both formal and informal contexts to greet or acknowledge someone. Avoid when expressing strong emotions, like anger; that context might use 'waving your arms' in a different sense.

Frequently asked questions: Sign vs Wave

What's the difference between Sign and Wave?

Sign: A symbol or action that shows something or gives information. Wave: To move your hand back and forth to greet someone or say goodbye.

Are Sign and Wave the same CEFR level?

Sign: A2, Wave: A2 on the CEFR scale.

What part of speech are Sign and Wave?

Sign: noun, Wave: noun.

Can you show an example of each?

Sign: Please follow the sign to reach the train station. Wave: The wave crashed onto the shore, creating a beautiful splash.

Can I use Sign and Wave interchangeably?

Not always. Sign and Wave are related and overlap in some contexts, but they differ in register, how common they are, and usage, so swapping one for another can change the meaning or tone. Check the differences above before substituting.

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