This is a crutch.

Crutches are pretty tricky ... "Excuse me, stretcher coming through!"

Often she was very sad and lonely, and it happened that one day while she was seated at the window, letting salt tears drop on her work, an old woman, a kind, homely-looking old body, stepped up to the window, and, leaning upon her crutch, addressed the Queen in friendly, flattering tones.

Some language purists see emojis as a crutch.

I took one step outside with my crutches, and I slipped and almost died. Realizing my mistake of trying to venture outside while the groud was wet, I took one more step in, and again, I slipped and almost died.

Tom fell from his crutches. Fortunately, Mary helped him to get up again.

Tom isn't using crutches anymore.

She had no idea that the kind-looking old woman leaning on her crutch was in reality a wicked witch, who envied the Queen her good fortune, and was determined to ruin her.

Mennad was using Baya as a crutch. She supported him through everything.

Honesty is a beggar on crutches; roguery is a princess with a crown.