許す【ゆるす】
to permit, to allow, to approve, to consent to, to forgive, to pardon, to excuse, to tolerate, to exempt (someone) from, to remit, to release, to let off, to acknowledge, to admit, to trust, to confide in, to let one's guard down, to give up (points in a game, distance in a race, etc.), to yield
許可【きょか】
permission, approval, authorization, license
免許【めんきょ】
license, licence, permission, permit, certificate
許し【ゆるし】
pardon, forgiveness, exemption, permission
許し【ばかし】
approximately, about, only, nothing but, just (finished, etc.)
特許【とっきょ】
patent, special permission, license, licence, concession, charter
許容【きょよう】
permission, allowance, acceptance, tolerance, pardon
許諾【きょだく】
consent, assent, approval, permission
無免許【むめんきょ】
unlicensed, without a license (licence)
特許庁【とっきょちょう】
Patent Office, Patent Agency
特許権【とっきょけん】
patent rights
専売特許【せんばいとっきょ】
patent, one's specialty (party piece, etc.)