Verb
The word is derived from twig
of Twig
Source: Webster's dictionaryAnd that Socrates never twigged that constantly flashing the cash, rather than using his plastic, would not arouse suspicion. Source: Internet
"The writing of the article obviously twigged the emotions of readers who expressed that on members of our staff. Source: Internet
Unfortunately, assorted bad guys have also twigged to the shrine's possible whereabouts, so a host of potential villains descend upon Rothenburg in Germany. Source: Internet
I finished nearly the whole bottle before I twigged. Source: Internet