Dictionary

Relatively great in extent from one surface to the opposite in its smallest solid dimension.

Measuring a certain number of units in this dimension.

Example: I want some planks that are two inches thick.

Heavy in build; thickset.

Example: He had such a thick neck that he had to turn his body to look to the side.

Densely crowded or packed.

Example: We walked through thick undergrowth.

In a thick manner.

Example: Snow lay thick on the ground.

Frequently or numerously.

Example: The arrows flew thick and fast around us.