verb

• (intransitive) To delay movement or action until some event or time; to remain neglected or in readiness.
  "Wait here until your car arrives."
• (intransitive, stative, US) To wait tables; to serve customers in a restaurant or other eating establishment.
  "She used to wait in this joint."
• (transitive, now rare) To delay movement or action until the arrival or occurrence of; to await. (Now generally superseded by “wait for”.)
  "to wait one’s turn"
• (transitive, obsolete) To attend on; to accompany; especially, to attend with ceremony or respect.
  "He chose a thousand horse, the flower of all / His warlike troops, to wait the funeral."

noun

• (computing) Ellipsis of wait state.
• (obsolete) One who watches; a watchman.
• (in the plural, obsolete, UK) Hautboys, or oboes, played by town musicians.
  "[…]as he returned home to his owne house, the waits should sound the hautboies all the way"
• (in the plural, UK) Musicians who sing or play at night or in the early morning, especially at Christmas time; serenaders; musical watchmen. [formerly waites, wayghtes.]
  "Hark! are the waits abroad?"

intj

• (informal) Tells the other speaker to stop talking, typing etc. for a moment, often to allow clarification.
  "- And so I went upstairs— - Wait. Your house has two floors?"