reading has 7 distinct synonyms spread across 5 of its 8 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. WordNet records no antonym for it — antonymy is a relation between word forms rather than concepts, so it is deliberately sparse.
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.
the cognitive process of understanding a written linguistic message
“his main reading was detective stories”
a particular interpretation or performance
Synonyms, antonyms and the broader and narrower relations for reading come from Princeton University’s WordNet. Full sources and licences.
“on that reading it was an insult”
a datum about some physical state that is presented to a user by a meter or similar instrument
“he could not believe the meter reading”
written material intended to be read
“the teacher assigned new readings”
a mental representation of the meaning or significance of something
a city on the River Thames in Berkshire in southern England
a public instance of reciting or repeating (from memory) something prepared in advance
“the program included songs and recitations of well-loved poems”
the act of measuring with meters or similar instruments
“he has a job meter reading for the gas company”