WordNet sense 1 (the final path followed by an aircraft as it is landing):

approach path, glide path, glide slope

WordNet sense 2 (the event of one object coming closer to another):

approaching

WordNet sense 3 (a tentative suggestion designed to elicit the reactions of others):

advance, feeler, overture

WordNet sense 4 (the temporal property of becoming nearer in time):

coming

WordNet sense 5 (come near or verge on, resemble, come nearer in quality, or character):

border on

WordNet sense 6 (a way of entering or leaving):

access

WordNet sense 7 (begin to deal with):

set about, go about

WordNet sense 8 (move towards):

near, come near, come on, draw close, go up, draw near

WordNet sense 9 (ideas or actions intended to deal with a problem or situation):

attack, plan of attack

WordNet sense 10 (a relatively short golf shot intended to put the ball onto the putting green):

approach shot