spike

An ear of grain, as of wheat.

A usually elongated, unbranched inflorescence with stalkless flowers arranged along an axis.

A long, thick, sharp-pointed piece of wood or metal.

A heavy nail.

A spikelike part or projection, as.

A sharp-pointed projection along the top of a fence or wall.

A thin, sharp-pointed vertical rod for impaling papers; a spindle.

An elongate unbranched inflorescence with sessile flowers.

A thorn or spine.