look-in noun 5look in verb 1forms 4 noun5 •A quick glance. •(UK) A chance to participate, compete, or succeed. •(informal) Any involvement or opportunity.When it came to the tournament, our team didn't get a look in. •A brief visit. •A quick short pass to a receiver running diagonally toward the center of the field. look in verb1 •To visit a place or person briefly and casually.You might look in next time you're passing by. formslooked in · looking in · looks in · look-ins