touch on


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touch (up)on something

Fig. to mention something; to talk about something briefly. In tomorrow's lecture I'd like to touch on the matter of taxation. The teacher only touched upon the subject. There wasn't time to do more than that.
See also: on, touch

touch on something

Fig. to mention something; to talk about something briefly. In tomorrow's lecture I'd like to touch on the matter of taxation. The teacher only touched on the subject. There wasn't time to do more than that.
See also: on, touch

touch on

Also, touch upon.
1. Mention briefly or casually in passing, as in He barely touched on the subject of immigration. [First half of 1600s]
2. Approach closely, verge on, as in This frenzy touched on clinical insanity. [Early 1800s]
See also: on, touch

touch on

or touch upon
v.
1. To deal with some topic in passing: The speech touched on all the important issues but never really discussed them.
2. To relate to someone or something; concern someone or something: The problem of poverty touches on every level of society.
3. To approach the nature or condition of something; come close to something: The fan's excitement touched on clinical insanity.
See also: on, touch