トムは歩くのが遅い。

to be rich; to become rich; to be abundant (with); to abound (with); to be rich (in)

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

to walk

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

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

slow; late (e.g. "late at night"); too late; dull; stupid