箱の中には梨がいくつかある。

box; case; chest; package; pack; car (of a train, etc.); shamisen case; shamisen; public building; community building; man who carries a geisha's shamisen; receptacle for human waste; feces (faeces); counter for boxes (or boxed objects)

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

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

nashi (Pyrus pyrifolia, esp. var. culta); Japanese pear; Asian pear; sand pear; apple pear

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

how many?; how old?

indicates a question (sometimes rhetorical); or; whether or not; some- (e.g. something, someone); indicates doubt, uncertainty, etc.; emphatic prefix; suffix forming adjectives or adverbs; in that way

to be (usu. of inanimate objects); to exist; to live; to have; to be located; to be equipped with; to happen; to come about