cotton on

To begin to understand something; to grasp fully; to catch on. Primarily heard in UK. It took me a few moments to cotton on, but I soon realized that they were talking about me.

Common Names:

Name	Pronounced	Usage
Fulgencio	fool-KHEN-thyo (Spanish), fool-KHEN-syo (Latin American Spanish)	Spanish
Huey	['hju:i]
Gretta	GRET-ə	English
Becca	BEK-ə	English
RÉGine	-	French
Joann	JON, jo-AN	English