鐘(钟) zung1(canto) zhōng (mand) = clock
錶(表) biu1(canto) biǎo(mand)= watch
送 sung3 (canto) sòng(mand) = to gift, to send, to send off...
送鐘(送钟) sung3 zung1 (canto) sòngzhōng (mand) = to give someone a clock as a gift
送終(送终) sung3 zung1 (canto) sòngzhōng (mand) = to attend upon a dying senior family member
Because of the homophony, you avoid to offer a clock to a sino speaking person but you can offer a watch ;-)