コップ１杯の水をください。

glass (i.e. drinking vessel); tumbler; cop (police officer)

one; best; first; foremost; beginning; start; bottom string (on a shamisen, etc.)

sake cup; cup for alcoholic beverages; counter for cupfuls; counter for ships, octopuses and squid

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

water (esp. cool, fresh water, e.g. drinking water); fluid (esp. in an animal tissue); liquid; flood; floodwaters; water offered to wrestlers just prior to a bout; break granted to wrestlers engaged in a prolonged bout

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.

to give; to confer; to bestow; to kindly do for one; to oblige; to favour; to favor