n.
Function: verb
Inflected Form: twigged ; twig · ging
Etymology: perhaps from Irish & Scottish Gaelic tuig- understand
Date: 1764
transitive verb
1 : NOTICE , OBSERVE
2 : to understand the meaning of : COMPREHEND
intransitive verb : to gain a grasp : UNDERSTAND < twigged instinctively about things ― H. E. Bates>