construction has 6 distinct synonyms spread across 6 of its 7 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 one recorded opposite is misconstruction.
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.
a group of words that form a constituent of a sentence and are considered as a single unit
“I concluded from his awkward constructions that he was a foreigner”
the creation of a construct; the process of combining ideas into a congruous object of thought
drawing a figure satisfying certain conditions as part of solving a problem or proving a theorem
“the assignment was to make a construction that could be used in proving the Pythagorean theorem”
an interpretation of a text or action
“they put an unsympathetic construction on his conduct”
the commercial activity involved in repairing old structures or constructing new ones
“their main business is home construction”
Synonyms, antonyms and the broader and narrower relations for construction come from Princeton University’s WordNet. Full sources and licences.