Meaning of “wide” - Learner’s Dictionary

wide

adverb us uk /waɪd/
Stand with your feet wide apart.Someone had left the gate wide open.The system is wide open to abuse.Whe she returned, the front door was wide open.Don't have your legs too wide apart.
wide apart/open

B2 as far apart/open as possible:

The window was wide open.
wide awake

(Definition of “wide adverb” from the Cambridge Learner’s Dictionary © Cambridge University Press)