Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
three-d is a noun and adjective meaning "a movie with images having three dimensional form or appearance". It carries 3 recorded senses.
involving or relating to three dimensions or aspects; giving the illusion of depth
“lifelike three-dimensional characters”
“a three-dimensional account of conditions under the new government”
“they shot the movie in three-D”
Definitions, synonyms and semantic relations for three-d come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.