The word 'sign' is both a verb and a noun.
The noun 'sign' is a word for:
Noun: The sign said 'stop'.
Verb: Just sign on the bottom line and the car is yours.
Depends on what type of sign you mean.
A placard is a sign.
An omen is a sign.
Manual language is comprised of signs.
Sign is already a verb, as it can be used as an action.
For example: "we will sign the papers".
Some other verbs are signs, signing and signed.
omen
Call sign?
Another word for enrolls could be sign- up or matriculation, or enlist.
sign, prediction, warning, prenotion
Superb is another word for excellent. Superb is another word for excellent.
A root word is a word in its own right but from which another word is derived. E.g. The rood word of Audible is Audio. Some words have two root words, e.g., outhouse. Simple roots need not be words on their own, e.g., tele (which is a prefix for far), becomes telephone.
Constellation or zodiac sign
character, sign
Enrol
yes
Call sign?
I have listed this as part of another answer here: What_is_sign_for_king_in_asl
Another word for enrolls could be sign- up or matriculation, or enlist.
Placard , notice , poster or sign .
sympton
sign, prediction, warning, prenotion
Mercedes logo, maybe
The exit, hope this helped!