more has 4 distinct synonyms spread across 3 of its 5 senses. Each sense below keeps its own list, because a synonym belongs to a meaning and not to a word: swapping one sense's substitute into another sense's sentence is how a thesaurus makes writing worse. Its 2 recorded opposites are less, fewer.
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.
(comparative of `many' used with count nouns) quantifier meaning greater in number
“a hall with more seats”
Synonyms, antonyms and the broader and narrower relations for more come from Princeton University’s WordNet. Full sources and licences.
used to form the comparative of some adjectives and adverbs
“more interesting”
comparative of much; to a greater degree or extent
“he works more now”
English statesman who opposed Henry VIII's divorce from Catherine of Aragon and was imprisoned and beheaded; recalled for his concept of Utopia, the ideal state