Preregistrations is valid word

Is preregistrations a scrabble word?
Official Scrabble Players Dictionary NO
Official Tournament and Club Word List NO
Collins Scrabble Words NO
Is preregistrations valid Words with Friends?
Words with Friends NO

16 letters word
19 points in Scrabble
22 points in WWF

Definitions for PREREGISTRATIONS in dictionary:

NOUN:

the act of registering.
an instance of this.
an entry in a register.
the group or number registered.
a certificate attesting to the fact that someone or something has been registered: a boat registration.
an official act of registering one's name in the list of qualified voters.

Similar words containing REGISTRATION without suffix s and without prefix pre

registration13 registrations14 deregistration16 registrational15 reregistration15 deregistrations17 misregistration18 preregistration18 reregistrations16 misregistrations19

Find what other words can be done using letters: "preregistrations"
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