Idioms beginning with O
412 idioms, from “oat opera” to “ox is in the ditch”.
All idioms beginning with O
- oat operaAnimals & nature
- odd and curious
- odd duck
- odd fish
- odds and ends
- of a
- of a kind
- of a piece
- of age
- of all loves
- of all people
- of all placesPlaces & travel
- of all things
- of an
- of choice
- of lateTime & pace
- of one mind
- of sorts
- of the same stripe
- of two mindsTruth, lies & confusion
- off and running
- off balance
- off board
- off chance
- off one's boxEmotions & feelings
- off one's dotTruth, lies & confusion
- off one's feedBody, health & looks
- off one's game
- off one's hingeEmotions & feelings
- off one's hingesPeople & relationships
- off one's nutEmotions & feelings
- off one's own bat
- off one's tits
- off one's tree
- off one's trolleyPlaces & travel
- off pat
- off the back footSport, games & leisure
- off the bat
- off the beaten pathPlaces & travel
- off the beaten trackPlaces & travel
- off the deep endEmotions & feelings
- off the face of the earth
- off the grid
- off the hook
- off the radarPlaces & travel
- off the rails
- off the reservationPlaces & travel
- off the scale
- off the table
- off the top of one's head
- off the wagonFood & drink
- off to the racesSport, games & leisure
- off-colorTalk & communication
- offer affordancesTalk & communication
- offer one can't refuse
- offer one's condolences
- offer up
- Officer FriendlyLaw, power & politics
- off-kilter
- off-roader
- off-the-cuff
- off-the-shelf
- off-the-wall
- often wrong, never in doubt
- oh dark hundredTime & pace
- oh dark thirtyTime & pace
- oh my
- oh my goodness
- oh my goodness gracious
- oh my gosh
- oh well
- oil and water
- oil burner
- oil trash
- old as the hillsTime & pace
- old boy networkPeople & relationships
- old chestnut
- old enough to voteTime & pace
- old fart
- old flamePeople & relationships
- old fogey
- old hand
- old hat
- old head on young shoulders
- old money
- old salt
- old saw
- old school
- old song
- old stager
- old stick
- old wine in a new bottle
- the old woman is plucking her gooseFood & drink
- old-fashioned lookBody, health & looks
- oll korrect
- on a first-name basis
- on a full stomach
- on a kickEffort & character
- on a lark
- on a losing wicketSport, games & leisure
- on a regular basisTime & pace
- on a shoestringMoney & work
- on a tear
- on a whim
- on account of
- on acid
- on all fours
- on an irregular basisTime & pace
- on and offTime & pace
- on average
- on board
- on cloud nineEmotions & feelings
- on course
- on demand
- on edge
- on end
- on eternal patrolTrouble & conflict
- on fire
- on good termsPeople & relationships
- on hand
- on hold
- on ice
- on in years
- on its merits
- on one's bill
- on one's deathbedBody, health & looks
- on one's feet
- on one's high horse
- on one's knees
- on one's last legs
- on one's lonesome
- on one's own
- on one's tod
- on one's toes
- on one's watchTime & pace
- on opposite sides of the barricadesTrouble & conflict
- on pins and needles
- on purpose
- on second thought
- on sight
- on someone's accountMoney & work
- on someone's dimeMoney & work
- on someone's doorstepPlaces & travel
- on someone's handsEffort & character
- on someone's mindEmotions & feelings
- on steroids
- on stun
- on sufferance
- on talking termsPeople & relationships
- on tenterhooks
- on the anvil
- on the back burnerFood & drink
- on the back foot
- on the back ofPlaces & travel
- on the ball
- on the bounce
- on the brainEmotions & feelings
- on the breadline
- on the bubble
- on the buttonTime & pace
- on the cards
- on the clockTime & pace
- on the cuffMoney & work
- on the cusp
- on the cutting room floor
- on the debit sideMoney & work
- on the dotTime & pace
- on the doubleTime & pace
- on the down-low
- on the drum
- on the dry
- on the edge
- on the edge of one's seat
- on the face ofPlaces & travel
- on the face of itBody, health & looks
- on the fly
- on the fritz
- on the front footSport, games & leisure
- on the game
- on the go
- on the gripping hand
- on the heels of
- on the horn
- on the horns of a dilemmaTrouble & conflict
- on the hush
- on the ladder
- on the lam
- on the level
- on the line
- on the loose
- on the mark
- on the mendBody, health & looks
- on the money
- on the one hand
- on the other hand
- on the other side of
- on the outsPeople & relationships
- on the outside, looking in
- on the pill
- on the plus side
- on the point ofTime & pace
- on the prowlAnimals & nature
- on the pull
- on the Q.T.
- on the radar
- on the rag
- on the railsPlaces & travel
- on the rampageTrouble & conflict
- on the receiving end
- on the rise
- on the ropesSport, games & leisure
- on the run
- on the same page
- on the same wavelength
- on the shelf
- on the side of the angels
- on the skids
- on the slyTruth, lies & confusion
- on the squareTruth, lies & confusion
- on the streetPlaces & travel
- on the table
- on the toss of a coin
- on the trot
- on the upPlaces & travel
- on the uptake
- on the wagon
- on the wane
- on the warpathTrouble & conflict
- on the way
- on the whole
- on the wrong side of historyLaw, power & politics
- on thin ice
- on topPlaces & travel
- on top of
- on top of the worldEmotions & feelings
- on trackEffort & character
- on with youPlaces & travel
- on yer bikePlaces & travel
- on-brand
- once againTime & pace
- once and for all
- once bitten, twice shy
- once in a blue moonTime & pace
- once in a purple moon
- once in a whileTime & pace
- once or twiceTime & pace
- one after another
- one age with
- one and all
- one and only
- one and the same
- one at a time
- one brick short of a full loadEmotions & feelings
- one could hear a pin drop
- one fell swoop
- one flesh
- one in the eye for
- one momentTime & pace
- one of His Majesty's bad bargains
- one of those things
- one side
- one small step for man, one giant leap for mankind
- one step ahead
- one step at a timeEffort & character
- one step forward, two steps backEffort & character
- the one that got away
- one too many
- one up
- one-hit wonderSport, games & leisure
- one-horse raceSport, games & leisure
- one-horse town
- one-man band
- one-night standPeople & relationships
- one-note
- one-off
- one's back is upAnimals & nature
- one's bark is worse than one's bite
- one's blood is upEmotions & feelings
- one's blood runs coldEmotions & feelings
- one's days are numberedTime & pace
- one's heart in one's mouthEmotions & feelings
- one's hourTime & pace
- one's jig is upTruth, lies & confusion
- one's lips are sealed
- one's name is mud
- one's ship comes inMoney & work
- one's socks off
- one's word is law
- onesey-twosey
- onesie-twosie
- one-star
- one-track mindEmotions & feelings
- one-trick pony
- one-way ticket to Palookaville
- only game in town
- only time will tell
- on-the-spot
- oof-bird
- open a can of whoop assTrouble & conflict
- open book
- open doorsMoney & work
- open fireTrouble & conflict
- open one's legs
- open one's mind
- open one's mouth
- open Pandora's box
- open season
- open someone's eyes
- open the battingSport, games & leisure
- open the door
- open the floodgates
- open the kimono
- open wideFood & drink
- open-armed
- open-door policy
- opening of an envelopeTruth, lies & confusion
- opinions are like assholes
- opposite number
- or else
- or something
- or what
- or words to that effect
- Oreo cookieFood & drink
- orgiast
- ostrich policy
- the other dayTime & pace
- other end of the ballSport, games & leisure
- other fish in the seaPeople & relationships
- other halfPeople & relationships
- other head
- other sidePlaces & travel
- other side of the tracks
- other than
- otherwise engaged
- an ounce of prevention is better than a pound of cure
- our eraTime & pace
- out and aboutPlaces & travel
- out coldBody, health & looks
- out for bloodTrouble & conflict
- out loud
- out of a nightmare
- out of bounds
- out of central casting
- out of character
- out of date
- out of fix
- out of frame
- out of gasPlaces & travel
- out of house and home
- out of kilter
- out of line
- out of luckTrouble & conflict
- out of nowhere
- out of one's box
- out of one's depth
- out of one's element
- out of one's face
- out of one's mindEmotions & feelings
- out of order
- out of place
- out of pocketMoney & work
- out of proportion
- out of reachPlaces & travel
- out of shape
- out of sightBody, health & looks
- out of sight, out of mind
- out of someone's wayPlaces & travel
- out of sortsEmotions & feelings
- out of the blueEmotions & feelings
- out of the box
- out of the chute
- out of the frying pan, into the fire
- out of the gate
- out of the loop
- out of the ordinary
- out of the picture
- out of the question
- out of the runningSport, games & leisure
- out of the wayPlaces & travel
- out of the woodsTrouble & conflict
- out of thin air
- out of this world
- out of touch
- out of wedlockPeople & relationships
- out of whack
- out on a limb
- out on one's feet
- out on the tilesSport, games & leisure
- out sickBody, health & looks
- out the window
- out to lunch
- out-paramour the TurkLaw, power & politics
- outpope the PopeReligion & belief
- outside chance
- outside the box
- outside worldPlaces & travel
- over a barrel
- over and outTalk & communication
- over and over again
- over my dead body
- over nine thousand
- over one's head
- over one's skisSport, games & leisure
- over the hill
- over the hills and far away
- over the line
- over the moonEmotions & feelings
- over the top
- over the transom
- overstep the mark
- own up
- ox is in the ditchTrouble & conflict