To start, begin.
To cause to go on board a vessel or boat; to put on shipboard.
To get on a boat or ship or (outside the USA) an aeroplane.
To engage, enlist, or invest (as persons, money, etc.) in any affair.
To begin.
To take in or ingest.
To put an idea into a person's mind so deeply that they believe it was their own. Inspired by the movie Inception (2010) and used by Mark Zuckerberg & Yuval Noah Harari in Conversation at 01:23:00.
To be accepted to the Master of Arts degree at Oxford or Cambridge University.