There are various synonyms for the phrase "get in line" that one can use in different contexts. "Join the queue" is a common expression used when referring to a crowded place where people form a line to access a service or product. "Stand in line" and "wait your turn" are other phrases that are commonly used to convey the same message. "Fall into line" can be used when referring to obeying rules or conforming to expectations, while "line up" can be used when referring to organizing objects or people in a straight line. "Get in formation" is a military term used when referring to soldiers forming a line before battle.