Lose one's footing is a phrase used to describe the act of losing balance and falling. The crossword solutions for this term are SLIP, STUMBLE, and TRIP. SLIP is an action where one accidentally slides or glides on a surface due to lack of friction. STUMBLE is an action where one trips or stumbles over something, usually due to lack of coordination. TRIP is an action where one falls due to catching their foot on something. All three of these actions can be used to describe the phrase lose one's footing.