lets have (verb) give: contribute, supply, transfer
Sinonime: Jane/John Doe, X, bearding, incognito, innominate, nameless,
pseudo, pseudonymous,
secret, so and so, such and such, unacknowledged, unattested, unavowed, unclaimed, uncredited, undesignated, undisclosed, unidentified, unnamed, unsigned, unspecified, what's his/her name, whatchamacallit, whatsis, you know who
Antonime: identified,
known, named