(transitive) To make thicker (in the sense of wider). / (transitive) To make thicker (in the sense of more viscous). / (intransitive) To become thicker (in the sense of wider).

One who plays the game of checkers.

(rare, possibly nonstandard) The process or fact of becoming explicit or of causing to be explicit; that which makes something explicit.

Third-person singular simple present indicative form of waken