Monticola solitarius, a thrush-like flycatcher found in southern Europe, northern Africa and parts of Asia

plural of common rock thrush

Monticola saxatilis, a chat belonging to the family Muscicapidae.

One of 102 counties in Illinois, United States. County seat: Rock Island.

The Procavia capensis (“P. capensis”). A mammal with a rodent-like appearance, but not closely related, related instead to the elephant, found in Africa and the Middle East.

Synonym of sleep like a log

(informal psychology) The practice of deliberately making oneself uninteresting and unresponsive so as to defend oneself against a narcissist who wishes to elicit certain responses.

(simile) Utterly solid, firm, or reliable.

Alternative form of gray rock method

plural of Guianan cock-of-the-rock