All 4 Uses

initiate
in
The Hunt for Red October
(Auto-generated)

If we detect another submarine or surface ship you will inform me at once and instantly initiate evasion drill.†
Chpt 3. *
We know that our old friend Andropov initiated a replay of the Henry II/Becket business.†
Chpt 13.
You can bet, however, that whoever initiated this operation is working very hard to cover his tracks.†
Chpt 13. *
If he was reading the situation correctly, the Politburo was turning the KGB loose on the GRU and the military, allowing Moscow Center to initiate its own independent investigation of the affair.†
Chpt 16.

Definitions:

(1) (initiate as in: initiate discussions)
to cause (something) to begin
(2) (initiate as in: initiate into the art of drumming)
introduce to an activity or area of knowledge
(3) (initiate as in: initiate into the fraternity)
to accept someone's membership into an organization -- typically in a ceremony -- sometimes including a period of instruction and/or test
(4) (initiate as in: She is a new initiate.)
someone who has formally started in an organization, or been introduced to or attained some expertise in a particular field
(5) (meaning too rare to warrant focus)