From WordNet (r) 3.0 (2006):
touch on
v 1: refer to or discuss briefly
2: be relevant to; "There were lots of questions referring to
her talk"; "My remark pertained to your earlier comments"
[syn: refer, pertain, relate, concern, come to,
bear on, touch, touch on, have-to doe with]
3: restore by replacing a part or putting together what is torn
or broken; "She repaired her TV set"; "Repair my shoes
please" [syn: repair, mend, fix, bushel, doctor,
furbish up, restore, touch on] [ant: break, bust]
4: have an effect upon; "Will the new rules affect me?" [syn:
affect, impact, bear upon, bear on, touch on,
touch]