Incognito
(of a person) having one's true identity concealed.
Connection
a relationship in which a person, thing, or idea is linked or associated with something else.
Cognizer
a being that is able to cognize.
Connotation
an idea or feeling that a word invokes in addition to its literal or primary meaning.
Cognation
the relationship by blood or family descent from the same ancestor
Conniption
a fit of rage or hysterics.
Recognize
identify (someone or something) from having encountered them before; know again.
Connivances
willingness to secretly allow or be involved in wrongdoing, especially an immoral or illegal act.
Cognising
perceive, know, or become aware of.
Reconnaissance
military observation of a region to locate an enemy or ascertain strategic features.