WC?

The meaning of WC it's Water-closet.

Watch vs clock

A watch is little compared with a clock. People can put the watch in his arm, like a bracelet but they can't do it with a clock, because it's bigger and heavy than a watch and people put watches on the walls, tables or in the ground.

City vs Town

The city has more population, houses, flats, shops and industry and a Town has low population, some shops and farms.