lag vs detain

lag is a noun but detain is not a noun.

Word	Noun	Adjective	Verb	Adverb
lag	Yes	No	Yes	No
detain	No	No	Yes	No

As verbs, detain is a hypernym of lag; that is, detain is a word with a broader meaning than lag:

Other hypernyms of lag include confine.

lag (noun)	detain (noun)
the act of slowing down or falling behind
one of several thin slats of wood forming the sides of a barrel or bucket
the time between one event, process, or period and another

lag (verb)	detain (verb)
throw or pitch at a mark, as with coins	cause to be slowed down or delayed
cover with lagging to prevent heat loss	stop or halt
hang (back) or fall (behind) in movement, progress, development, etc.	deprive of freedom; take into confinement
lock up or confine, in or as in a jail