expel vs eject

expel and eject both are verbs.

Word	Noun	Adjective	Verb	Adverb
expel	No	No	Yes	No
eject	No	No	Yes	No

As verbs, expel and eject are synonyms defined as:

Other synonyms of expel include discharge, exhaust, release.

As verbs, eject is a hyponym of expel; that is, eject is a word with a more specific, narrower meaning than expel:

expel (verb)	eject (verb)
eliminate (a substance)	eliminate (a substance)
cause to flee	cause to come out in a squirt
force to leave or move out	put out or expel from a place
remove from a position or office	leave an aircraft rapidly, using an ejection seat or capsule