Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
word-splitting is a noun meaning "making too fine distinctions of little importance". It carries one recorded sense.
making too fine distinctions of little importance
“they didn't take his hairsplitting seriously”
Definitions, synonyms and semantic relations for word-splitting come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.