To concede as true; to acknowledge or assent to, as an allegation which it is impossible to deny (+ to).
To allow to enter; to grant entrance (to), whether into a place, into the mind, or into consideration
To give warrant or allowance, to grant opportunity or permission (+ of).
To allow (someone) to enter a profession or to enjoy a privilege; to recognize as qualified for a franchise.
To allow to enter a hospital or similar facility for treatment.
To be capable of; to permit. In this sense, "of" may be used after the verb, or may be omitted.
To deliberately make more confusing in order to conceal the truth.
To alter code while preserving its behavior but concealing its structure and intent.
Before leaving the scene, the murderer set a fire in order to obfuscate any evidence of their identity.
To make dark; to overshadow.