| cow | cows | cowboy | cowpox | coward | cowardly |
| crowd | crowds | crowded | crowding | crowdedness | overcrowded |
| frown | frowns | frowned | frowning | frowner | frowningly |
| brown | browns | browned | brownie | brownies | browner |
| house | houses | greenhouse | household | housekeeper | housewife |
| round | rounds | around | rounders | rounding | roundabout |
| count | counter | counted | counting | county | countryside |
| shout | shouts | shouted | shouting | shouter | shouters |
