touch on - definition and synonyms

phrasal verb [transitive]
present tense
I/you/we/theytouch on
he/she/ittouches on
present participletouching on
past tensetouched on
past participletouched on

or touch upon

  1. touch on something to mention something when you are talking or writing

    He did not touch on the issue of immigration.

See also main entry: touch