(chiefly UK, informal, law enforcement) The flashing blue lights and (originally) two-tone siren of a police vehicle.

plural of four by two

plural of one-two

(informal) A developmental stage in toddlers, normally occurring around the age of two, involving refusals and temper tantrums.

plural of twenty-two

plural of number two

plural of four-by-two

(slang) Turntables used by DJs.

(idiomatic) To figure something out; to deduce or discern something.

plural of two-up-two-down