one-time adjective 2noun 1verb 1one time adverb 1forms 3 adjective2 •Occurring or used in a single instance and then never again.He was an eloquent speaker, and his slip of the tongue was a one-time error. •Of or pertaining to a specific period of time in the past, not extending to the present.He was the one-time president of the club. noun1 •(US, slang) The police.Ayo, it's Hell on Earth Whose necks are gonna be first? The projects is front line And the enemy is one-time I ain't gotta tell you It's right in front of your eyes — 1996 verb1 •To shoot (the ball or puck) directly from a teammate's pass.Basel's good moment continued, and in stoppage time of the first half, Streller released Salah with a clever pass down the middle and the young Egyptian one-timed the ball over Čech. — 2013 one time adverb1 •(informal) Used to introduce a narrative concerning a past eventOne time we cotch four hunderd and fifty thousand at one haul. — 1855 formsone-timed · one-timing · one-times