Heads-up and Sharp

Heads-up adjective - Fully alert and watchful.

Sharp and heads-up are semantically related In some cases you can use "Sharp" instead an adjective phrase "Heads-up".

Sharp adjective - Having an edge thin enough to cut or pierce something.

Heads-up and sharp are semantically related (North American) in cute topic. You can use "Heads-up" instead an adjective "Sharp". informal substitute

Nearby Words: sharpness, sharply, sharpen, sharpened, sharper