Definition of ob- in English:

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Pronunciation: /ɒb/


1Denoting exposure or openness: obverse
1.1Expressing meeting or facing: occasion
2Denoting opposition, hostility, or resistance: opponent
4(In modern technical words) in a direction or manner contrary to the usual; inversely: obconical


Ob- occurs mainly in words of Latin origin; it is also found assimilated in the following forms: oc- before c; of- before f; op- before p.


From Latin ob 'towards, against, in the way of'.

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