cosign

As a verb cosign

is to sign a document jointly with another person, sometimes as an endorsement.

As an adjective false is

(label) one of two states of a boolean variable; logic.

As a verb cosign

is to sign a document jointly with another person, sometimes as an endorsement.

As an adjective undefined is

lacking a definition or value.

As verbs the difference between contribute and cosign

is that contribute is to give something, that is or becomes part of a larger whole while cosign is to sign a document jointly with another person, sometimes as an endorsement.

As verbs the difference between cosign and assign

is that cosign is to sign a document jointly with another person, sometimes as an endorsement while assign is to designate or set apart something for some purpose.

As a noun assign is

an assignee.

is likely misspelled.

has no English definition.

As a verb cosign

is to sign a document jointly with another person, sometimes as an endorsement.

As verbs the difference between consign and cosign

is that consign is to transfer to the custody of, usually for sale, transport, or safekeeping while cosign is to sign a document jointly with another person, sometimes as an endorsement.

As a verb cosign

is to sign a document jointly with another person, sometimes as an endorsement.

As a noun coign is

a projecting corner or angle; a cornerstone.