other N2 common casualpolitewritten
きっかけ — a trigger / opportunity
きっかけ
Builds on 〜がきっかけで
A full written guide for きっかけ is on the way.
This point is mapped in the grammar tree, but its examples, formation table and usage notes haven't been written yet. The fastest way to learn it now is to meet it in real sentences inside Jengo.
See きっかけ in real sentences
Jengo shows きっかけ the way you actually meet it: inside real Japanese sentences, so it sticks instead of staying an abstract rule.
Study it in JengoSources Compiled from published Japanese grammar references. Editorial confidence: medium.