OK (?.)

• John Hancock
• Roger
• absolute
• absolutely
• accede to
• accept
• acceptable
• acceptance
• accord
• accord to
• accredit
• accurate
• ace-high
• acquiescence
• adequate
• adherence
• admiration
• admire
• admissible
• admission
• admit
• affirm
• affirmance
• affirmation
• affirmative
• affirmative voice
• agree to
• agreeable
• agreed
• agreement
• all right
• allow
• allowance
• alright
• alrighty
• amen
• approbation
• approval
• approve
• approve of
• as you say
• assent
• assuredly
• authenticate
• authentication
• authorization
• authorize
• autograph
• aye
• bad
• bang-up
• be willing
• benediction
• better than nothing
• bless
• blessing
• bonzer
• boss
• bully
• but good
• by all means
• certainly
• certification
• certify
• charter
• compliance
• condescend
• confirm
• confirmation
• connivance
• connive at
• consent
• consent to silently
• cool
• corking
• correct
• cosign
• countenance
• countersign
• countersignature
• crackerjack
• da
• dandy
• dead right
• decent
• deign
• delicious
• dispensation
• dispense
• ducky
• eagerness
• endorse
• endorsement
• esteem
• exactly
• fab
• fair
• fairish
• faultless
• favor
• favorable vote
• fine
• fine and dandy
• flawless
• gear
• give consent
• give leave
• give permission
• give the go-ahead
• give the imprimatur
• give the word
• give thumbs up
• go along with
• go-ahead
• good
• good enough
• goodish
• grant
• great
• green light
• groovy
• have no objection
• hear
• heavy
• hold with
• hot
• hunky-dory
• imprimatur
• indeed
• indeedy
• initial
• ja
• jam-up
• just
• just dandy
• just right
• just so
• keen
• keep in countenance
• leave
• let
• letter-perfect
• liberty
• license
• mais oui
• make possible
• marvy
• mean
• meticulous
• moderate
• most assuredly
• naturally
• naturellement
• neat
• nifty
• nobby
• nod
• nod assent
• not amiss
• not bad
• not half bad
• not refuse
• not so bad
• notarization
• notarize
• of course
• okay
• oui
• out of sight
• pass
• pass on
• pass upon
• passable
• patent
• peachy
• peachy-keen
• perfect
• permission
• permission to enter
• permit
• positively
• precisely
• presentable
• pretty good
• promptitude
• promptness
• proper
• quite
• rather
• ratification
• ratify
• readiness
• really
• release
• respect
• respectable
• right
• righto
• ripping
• rubber stamp
• rum
• sanction
• satisfactory
• say amen to
• say aye
• say the word
• say yes
• scrumptious
• seal
• seal of approval
• second
• sigil
• sign
• sign and seal
• signature
• signet
• slap-up
• smashing
• solid
• something else
• special permission
• spiffing
• spiffy
• stamp
• stamp of approval
• straight
• straight-up-and-down
• stunning
• submission
• subscribe to
• subscription
• sufficient
• support
• sure
• sure thing
• surely
• swear and affirm
• swear to
• swell
• take kindly to
• tenable
• the nod
• think well of
• ticket
• ticket of admission
• tidy
• to be sure
• tolerable
• tough
• truly
• undersign
• underwrite
• unexceptionable
• ungrudgingness
• unloathness
• unobjectionable
• unreluctance
• uphold
• validate
• validation
• very well
• viable
• view with favor
• visa
• vise
• voice
• vote
• vote affirmatively
• vote aye
• vouchsafe
• vouchsafement
• waiver
• warrant
• well and good
• why yes
• willingness
• wink at
• wizard
• workmanlike
• yea
• yea vote
• yeah
• yep
• yes
• yes indeed
• yes indeedy
• yes sir
• yes sirree
• yet
• yield assent