puzzle over - definition and synonyms

phrasal verb [transitive]
present tense
I/you/we/theypuzzle over
he/she/itpuzzles over
present participlepuzzling over
past tensepuzzled over
past participlepuzzled over
  1. puzzle over someone/something to think hard about someone or something for a long time and try to understand them

    I’ve puzzled over this question for a while, and I’m still not sure what the right answer is.

See also main entry: puzzle