Cases of word usage

1) an action that may begin a quarrel or war (aggression)

2) existence, to begin to exist (being)

3) to begin a discussion of (a topic) (broach)

4) to begin (the more usual word) (commence)

5) to be, begin to be, decaying (decay)

6) to receive / begin to receive weekly payment from the State as an unemployed person (dole)

7) (of a person) showing spirit, enthusiasm and ambition; to give a person / get permission to begin an activity such as starting a business, building a house etc (go-ahead)

8) (to cause something) to begin (originate)

9) a person who goes into an unexplored or undeveloped country to settle or work there; the first person to begin a new branch of study, method etc (pioneer)

10) an author's explanatory remarks at the beginning of a book; to begin with (preface)