How will I recognize you?
and How will I know you?a question asked by one of two people who have agreed to meet for the first time in a large busy place. Tom: Okay, I'll meet you at the west door of the station. Mary: Fine. How will I recognize you? Tom: I'll be wearing dark glasses. Bill: I'll meet you at six. How will I recognize you? Mary: I'll be carrying a brown umbrella.
recognize someone as someone or something
to accept and acknowledge someone to be someone; to accept and acknowledge something to be something. Mary didn't recognize the lawyer as her legal representative. Lizzy didn't recognize the car as her car.
recognize someone or something by something
to know someone or something by some distinguishing sign. You will be able to recognize me by my long mustache. Mary recognized her car by the ribbon tied to the antenna.
recognize someone or something for something
1. to identify someone or something as something. I recognized the deal for a scam as soon as I heard about it. Anyone could recognize Max for a common thief.
2. to show appreciation to someone or something for something. The organization recognized Laura for her excellent contributions to the philanthropy committee. The officers recognized the committee for its outstanding efforts.
recognize something for what it is
and recognize one for what one isto see and understand exactly what someone or something is or represents. The disease represented a serious threat to all peoples, and Dr. Smith recognized it for what it was. I recognize you for what you are, you scoundrel!