To engross or hold the attention of; to keep busy or occupied.
To enter into conflict with (an enemy).
To come into gear with.
To enter into (an activity), to participate (construed with in).
To draw into conversation.
To mesh or interlock (of machinery, especially a clutch).
To attract, to please; (archaic) to fascinate or win over (someone).
To guarantee or promise (to do something).
To arrange to employ or use (a worker, a space, etc.).
To bind through legal or moral obligation (to do something, especially to marry) (usually in passive).
To enter into battle.
To involve or engage deeply.
To place within a fluid (generally a liquid, but also a gas).
Archimedes determined the volume of objects by immersing them in water.
To map into an immersion.