会議の議長が病気になった。

meeting; conference; session; assembly; council; convention; congress

indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question

chairman; speaker (e.g. of assembly); president (e.g. of council, senate, etc.); moderator (e.g. of a newsgroup)

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

illness; disease; sickness

at (place, time); in; on; during; to (direction, state); toward; into; for (purpose); because of (reason); for; with; by; from; as (i.e. in the role of); per; in; for; a (e.g. "once a month"); and; in addition to; if; although

to become; to get; to grow; to be; to reach; to attain; to result in; to prove to be; to consist of; to be composed of; to succeed; to be complete; to change into; to be exchanged for; to play a role; to be promoted; to do ...