Common Phrases:
* Sign up: To register or enroll for something.
* Sign in: To log in or access an account.
* Sign off: To end a letter, email, or document with a farewell.
* Sign language: A system of communication using hand gestures and facial expressions.
* Sign of the times: A current trend or indication of what is happening in society.
* Sign here: A request to write your signature on a document.
* No sign of: Indicating an absence of something.
* Under the sign of: Used to indicate something is under the influence or auspices of something else.
* Road sign: A sign indicating directions, warnings, or regulations on a road.
* Sign language interpreter: A person who translates spoken language into sign language and vice versa.
Idioms and Phrases with Figurative Meaning:
* Sign of the times: A clear indication of the current state of affairs.
* Read the signs: To understand the clues or indications of what is happening.
* Give a sign: To provide an indication or signal.
* Signs are pointing to: Suggesting or indicating a particular outcome.
* Cross the sign: To break a rule or a law.
* To be on the sign: To be aware of something or someone.
* Take a sign: To accept a challenge or opportunity.
This is not an exhaustive list, but it provides a good starting point for phrases that include the word "sign."