preboard

[pree-bawrd, -bohrd]

verb (used with object)

to put or allow to go aboard in advance of the usual time or before others: Passengers with disabilities will be preboarded.

verb (used without object)

to go aboard in advance.

Origin of preboard

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019