I. adverb
1.
from one point to another across intervening space
sailed over to the island
Synonyms: across, athwart, beyond, transversely
2.
Synonyms: away 2, off
3.
Synonyms: ever 6, excessively, extremely, immensely, inordinately, overfull, overly, overmuch, too, unduly
4.
at a higher point
the plane was directly over
Synonyms: above, aloft, overhead
Idioms: on high
Antonyms: under
5.
at or to an end
it's all over between them
Synonyms: by, through
6.
Synonyms: through 1, around, round, throughout
7.
yet another time
do the work over
Synonyms: afresh, again, anew, de novo, once more
Idioms: over again
II. preposition
1.
at a higher level
clouds hung over the town
Synonyms: above, o'er
Antonyms: under
2.
Synonyms: across , athwart, cross
3.
with respect to
children squabbling over toys
Synonyms: about, on, upon, with
4.
so as to make contact with
hit him over the head
Synonyms: on, upon
5.
Synonyms: during , amid, mid, midst, throughout
6.
as the result of
quarreled over money matters
Synonyms: because of, due to, owing to, through
III. adjective
1.
Synonyms: superior 1, greater, higher, overlying, superincumbent, superjacent
Antonyms: under
2.
Synonyms: outer , exterior, external, outside, outward
IV. verb
Synonyms: clear 8, hurdle, leap, negotiate, overleap, surmount, vault