Thick and Thick as thieves

Thick adjective - Having or being of relatively great depth or extent from one surface to its opposite.

Thick as thieves and thick are semantically related In some cases you can use "Thick as thieves" instead an adjective "Thick".

Nearby Words: thicken, thickness, thickened, thicket, thickhead

Thick and thick as thieves are semantically related in intimate topic. You can use "Thick" instead an adjective phrase "Thick as thieves", if it concerns topics such as in close cooperation.