of the essence
— Adjective
– English
～ of the greatest importance; "the all-important subject of disarmament"; "crucial information"; "in chess cool nerves are of the essence"
off-the-peg
— Adjective
– English
～ (especially of clothing) made in standard sizes and available from merchandise in stock; "a ready-made jacket"; "ready-to-wear clothes"
off-the-shelf
— Adjective
– English
～ (especially of clothing) made in standard sizes and available from merchandise in stock; "a ready-made jacket"; "ready-to-wear clothes"
on-the-job
— Adjective
– English
～ relating to or associated with a job or employment; "on-the-job training"; "on-the-job requirements"
out of the blue
— Adverb
– English
～ in a way that was not expected; "her brother showed up at the wedding out of the blue"
on the Q.T.
— Adverb
– English
～ in secrecy; not openly; "met secretly to discuss the invasion plans"; "the children secretly went to the movies when they were supposed to be at the library"; "they arranged to meet in secret"
one after the other
— Adverb
– English
～ following one another in quick succession
off-the-clock
— Adverb
– English
～ overtime without extra compensation; "she often has to work off-the-clock"
on the other hand
— Adverb
– English
～ (contrastive) from another point of view; "on the other hand, she is too ambitious for her own good"; "then again, she might not go"
on the QT
— Adverb
– English
～ in secrecy; not openly; "met secretly to discuss the invasion plans"; "the children secretly went to the movies when they were supposed to be at the library"; "they arranged to meet in secret"
on the spur of the moment
— Adverb
– English
～ on impulse; without premeditation; "he decided to go to Chicago on the spur of the moment"; "he made up his mind suddenly"
on the sly
— Adverb
– English
～ in a furtive manner; "the soldiers were furtively crawling through the night"
on the button
— Adverb
– English
～ just as it should be; "`Precisely, my lord,' he said"
off the cuff
— Adverb
– English
～ without preparation; "the presidential candidate made a remark off the cuff"
on the average
— Adverb
– English
～ typically; "on average he watches three movies a week"
on the face of it
— Adverb
– English
～ from appearances alone; "irrigation often produces bumper crops from apparently desert land"; "the child is seemingly healthy but the doctor is concerned"; "had been ostensibly frank as to his purpose while really concealing it"-Thomas Hardy; "on the face of it the problem seems minor"
on the side
— Adverb
– English
～ without official authorization; "he had made some money on the side"
off the record
— Adverb
– English
～ not for quotation; "he spoke to the reporter off the record"
on the one hand
— Adverb
– English
～ from one point of view; "on the one hand, she is a gifted chemist"
on the nose
— Adverb
– English
～ just as it should be; "`Precisely, my lord,' he said"