I. surf 1 /sɜːf $ sɜːrf/ BrE AmE verb [intransitive and transitive]
1 . to ride on waves while standing on a special board
2 . surf the Net/Internet to look quickly through information on the Internet for anything that interests you
⇨ ↑ surfer , ↑ surfing
II. surf 2 BrE AmE noun [uncountable]
the white substance that forms on top of waves as they move towards the shore