I. top ‧ side 1 /ˈtɒpsaɪd $ ˈtɑːp-/ BrE AmE noun [uncountable]
British English high quality ↑ beef cut from the upper leg of the cow SYN top round American English
II. topside 2 BrE AmE ( also top‧sides /-saɪdz/) adverb
towards or onto the ↑ deck (=upper surface) of a boat or ship