理由【りゆう】
reason, pretext, motive
自由【じゆう】
freedom, liberty
不自由【ふじゆう】
discomfort, inconvenience, poverty, want, destitution, inability, disability, impairment (physical, mental, etc.), nonfluency (in a language)
経由【けいゆ】
going through, going via, going by way of
由来【ゆらい】
origin, source, history, derivation, originally, from the start, by nature
由緒【ゆいしょ】
history, pedigree, lineage
事由【じゆう】
reason, cause