私達は野球部の人達を旗を振って迎えた。

we; us

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

baseball club (i.e. baseball team of a university, corporation, etc.)

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

people

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

flag; pataka (banner)

to wave; to shake; to swing; to sprinkle; to throw (dice); to cast (actor); to allocate (work); to turn down (somebody); to reject; to jilt; to dump; to abandon; to give up; to ruin; to add kana indicating a reading of a word; to slightly change headings; to change directions; to extract by broiling; to prepare an infusion of; to decoct; to carry with great vigor (e.g. a portable shrine); to bring up the main topic; to replace; to substitute; to set up a joke for somebody else

to go out to meet; to receive; to welcome; to greet; to salute; to hail; to reach; to approach; to enter (a phase, era, etc.); to accept (e.g. as a member of a group or family); to call for; to summon; to invite; to approach (a certain time, a point in one's life, etc.)