English

Noun

o- (O negative)

1. A blood type that has no antigens. It lacks the A, B and Rh factors on the blood cells. It is the universal donor for blood and can give blood to any blood type, but can only receive O- blood.

Prefix

o-

1. (organic chemistry) ortho-

See also

• m-
• p-

Czech

Prefix

o-

1. A prefix, indicating:
   • Around, all around
   • A complete action, a perfective verb
   • Something else.

Derived terms

Japanese

Romanization

o-

1. rōmaji reading of お

Polish

Prefix

o-

1. prefix indicating a perfective verb

Derived terms

Swedish

Etymology

From Old Swedish ō- from Old Norse ú-, ó-, from Proto-Germanic *un-, from the Proto-Indo-European *n̥- whence also Greek α- ‎(a-) and English un-.

Prefix

o-

1. added to adjectives to yield their opposites.
2. added to nouns to mean lack or being without.

Derived terms

Taos

Pronunciation

• IPA^(key): /ʔɑ/

Prefix

o-

1. (transitive) First person singular subject + third person duoplural object.
2. (transitive) Second person singular subject + third person singular object.

Volapük

Prefix

o-

1. denotes future tense in verbs and adverbs

   • penob, "I write." openob, "I will write."
   • adelo, "today." odelo, "tomorrow."

Zulu

Prefix

o- ‎(full noun prefix, basic form bo-)

1. Class 2a noun prefix.

See also

Prefix

o- ‎(relative concord)

1. Second-person singular relative concord.
2. Class 1 and 3 relative concord.

See also