oftentimes - častokrát
BrE
/'ɒfntaɪmz/
AmE
/'ɑ:fntaɪmz/

adverb, dated - often

onset
onset - počátek, příchod (počátek), nástup (příchod)
BrE
/'ɒnset/
AmE
/'ɑ:nset/

noun - the beginning

offer
offer - nabídka
BrE
/'ɒfə/
AmE
/'ɑ:fər/

noun - a statement that asks you if you would like to have something

off
off - z, ze, pryč z
BrE
/'ɒf/
AmE
/'ɑ:f/

preposition - away from

 
occupy - okupovat, zabrat, obsadit, uchvátit
BrE
/'ɒkjʊpaɪ/
AmE
/'ɑ:kjəpaɪ/

verb - to take control of an area by force (esp. about an army etc.)

 
occupy - obývat, zaujímat
BrE
/'ɒkjʊpaɪ/
AmE
/'ɑ:kjəpaɪ/

verb - to stay or be in a place for a period of time

 
originate - vzniknout
BrE
/ə'rɪdʒəneɪt/
AmE
/ə'rɪdʒəneɪt/

verb - to start to exist

 
overwhelm - zdolat, ohromit, zaplavit, zavalit, zdrtit
BrE
/ˌəʊvə'welm/
AmE
/ˌoʊvər'welm/

verb - to defeat someone by force; to cause very strong emotions

 
overwhelm - přemoci, přemáhat
BrE
/ˌəʊvə'welm/
AmE
/ˌoʊvər'welm/

verb - to defeat somebody by force

obsessed
obsessed - posedlý
BrE
/əb'sest/
AmE
/əb'sest/

adjective - interested in something too much; unable to think about anything else

 
opt - zvolit si, rozhodnout se pro, zvolit, volit, vybrat, vybrat si
BrE
/'ɒpt/
AmE
/'ɑ:pt/

verb - to decide for something; to choose something

 
opposition - opozice, odpor
BrE
/ˌɒpə'zɪʃən/
AmE
/ˌɑ:pə'zɪʃən/

noun - disagreement with something

 
online - online
BrE
/ˌɒn'laɪn/
AmE
/ˌɑ:n'laɪn/

adjective - connected to or using a computer or the Internet

 
official - úředník, činitel, státní úředník, státní činitel
BrE
/ə'fɪʃl/
AmE
/ə'fɪʃl/

noun - a person who holds a position of authority

 
on the contrary - naopak
BrE
/ˌɒn ðə'kɒntrəri/
AmE
/ˌɑ:n ðə'kɑ:ntrəri/

adverb - the opposite is true