twig
twig1 /twɪɡ/ 
noun [countable]
—twiggy adjective
twig2 verb (past tense and past participle twigged, present participle twigging) [intransitive and transitive]
British English informal to suddenly realize something about a situation:
It took ages before he twigged.
| I |
noun [countable] Language: Old English
Origin: twigge
a small very thin stem of wood that grows from a branch on a treeOrigin: twigge
—twiggy adjective
| II |
verb (past tense and past participle twigged, present participle twigging) [intransitive and transitive]British English informal to suddenly realize something about a situation: