serf / surf [sɜrf]
serf – n. –1. History a labourer who was not free to move from the land on which he worked; 2. an oppressed person
surf – n. & v. – n. – 1. the swell of the sea breaking on the shore; 2. foam produced by crashing waves; v. – 1. ride the crest of a wave towards shore; 2. change television channels in rapid succession; 3. search or scan for material; 4. glide over