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 take upon oneself; to start, to embark on (a specific task etc.).
To commit oneself (to an obligation, activity etc.).
To pass a slower moving vehicle on the curbside rather than on the side closest to oncoming traffic.
The passing of slower traffic on the curbside rather than on the side closest to oncoming traffic.