constrain vs oblige

constrain and oblige both are verbs.

Word	Noun	Adjective	Verb	Adverb
constrain	No	No	Yes	No
oblige	No	No	Yes	No

As verbs, oblige is a hypernym of constrain; that is, oblige is a word with a broader meaning than constrain:

Other hypernyms of constrain include compel, obligate.

constrain (verb)	oblige (verb)
severely restrict in scope or extent	bind by an obligation; cause to be indebted
to close within bounds, or otherwise limit or deprive of free movement	provide a service or favor for someone
compel to behave in a certain way	force somebody to do something