Settle is a related term of choose.
As verbs the difference between settle and choose
is that
settle is to place in a fixed or permanent condition; to make firm, steady, or stable; to establish; to fix; especially, to establish in life; to fix in business, in a home etc while
choose is to pick; to make the choice of; to select.
As nouns the difference between settle and choose
is that
settle is (archaic) a seat of any kind while
choose is (dialectal|or|obsolete) the act of choosing; selection.
As a conjunction choose is
(mathematics) the binomial coefficient of the previous and following number.