opposite - protiklad
BrE
/'ɒpəsɪt/
AmE
/'ɑ:pəsɪt/

noun - a person or a thing that is as different as possible from something or somebody else

 
opponent - protivník, oponent, soupeř
BrE
/ə'pəʊnənt/
AmE
/ə'poʊnənt/

noun - a person or group of people that you fight or compete against

operate
operate - operovat
BrE
/'ɒpəreɪt/
AmE
/'ɑ:pəreɪt/

verb - to carry out a medical procedure on a person's body using various instruments

 
operate - provozovat, působit
BrE
/'ɒpəreɪt/
AmE
/'ɑ:pəreɪt/

verb - to do an activity involving many things and people

operation
operation - operace
BrE
/ˌɒpə'reɪʃn/
AmE
/ˌɑ:pə'reɪʃn/

noun - a medical procedure done on a person's body using various instruments

 
offence - přestupek, přečin
BrE
/ə'fens/
AmE
/ə'fens/

noun - an action which is against the law, a crime

 
offence - urážka
BrE
/ə'fens/
AmE
/ə'fens/

noun - something that somebody says or does that makes you feel angry, annoyed or unhappy

offend
offend - urazit, urážet
BrE
/ə'fend/
AmE
/ə'fend/

verb - to say or do something that causes somebody to feel angry, annoyed or unhappy

 
odd - navíc, nadbytečný
BrE
/'ɒd/
AmE
/'ɑ:d/

adjective - not matching, not part of a set or pair, what is left over when everything else has been used

occur
occur - napadnout, přijít na mysl
BrE
/ə'kɜ:/
AmE
/ə'kɜ:r/

verb - to come into your mind

 
occasionally - příležitostně, občas
BrE
/ə'keɪʒnəli/
AmE
/ə'keɪʒnəli/

adverb - only at special times

 
occasional - příležitostný, příležitostní
BrE
/ə'keɪʒənl/
AmE
/ə'keɪʒənl/

adjective - happening only at special times

 
obtain - získat, pořídit, sehnat
BrE
/əb'teɪn/
AmE
/əb'teɪn/

verb - to get

observatory
observatory - observatoř, hvězdárna
BrE
/əb'zɜ:vətri/
AmE
/əb'zɜ:rvətɔ:ri/

noun - a place from which you can watch the stars using a telescope

oboe
oboe - hoboj
BrE
/'əʊbəʊ/
AmE
/'oʊboʊ/

noun - a wooden musical instrument that you play by blowing through it