noun
authorization
Synonyms: admittance, allowance, charter, concession, consent, empowering, favor, franchise, go-ahead, grant, green light, indulgence, leave, legalization, liberty, license, pass, passport, patent, permission, privilege, safe-conduct, sanction, sufferance, toleration, visa, warrant
Antonyms: grounding, prohibition
verb
allow participation
Synonyms: abet, accede, accept, acquiesce, admit, agree, authorize, bless, blink at, boost, buy, charter, concede, concur, condone, consent, empower, enable, endorse, endure, franchise, give leave, give permission, go for, grant, have, humor, indulge, leave, let, let pass, license, okay, pass, privilege, sanctify, sanction, say yes, shake on, sign, sign off on, suffer, take kindly to, thumbs up, tolerate, warrant, wink at
Antonyms: deny, disallow, refuse, reject