WordNet records no synonym and no antonym for reeve. It is the only member of each of its synsets, which is common for technical, taxonomic and single-sense vocabulary — there is no other English word that means the same thing. The broader and narrower terms below are the useful relations in that case.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
pass a rope through
“reeve an opening”
pass through a hole or opening
“reeve a rope”
fasten by passing through a hole or around something
Synonyms, antonyms and the broader and narrower relations for reeve come from Princeton University’s WordNet. Full sources and licences.