The term 'BID FIRST' can be broken down into five crossword solutions: LED (3 letters), OPENED (6 letters), OPEN (4 letters), OPENS (5 letters), and ASK (3 letters). LED stands for Light Emitting Diode, which is a semiconductor device that emits light when an electric current passes through it. OPENED is the past tense of the verb OPEN, which means to move something so that a space is made available. OPEN is the present tense of the verb OPEN, and OPENS is the third person singular present tense of the verb OPEN. Finally, ASK is a verb meaning to request information from someone.