| seize the opportunity | | | |
| self-possession | | | |
| sell-by date | | | |
| sell down | | | |
| seller's market | | | |
| selling point | | | |
| sell one's birthright for a mess of pottage | | | |
| sell one's life dearly | | | |
| sell one's soul | | | |
| sell someone a bill of goods | | | |
| sell the pass | | | |
| send away | | | |
| send for a toss | | | |
| send someone packing | | | |
| send to Coventry | | | |
| send to the glue factory | | | |
| sense of craft | | | |
| serve notice | | | |
| serve the turn | | | |
| serve two masters | | | |
| set a spell | | | |
| set by the ears | | | |
| set eyes on | | | |
| set for life | | | |
| set in one's ways | | | |
| set off | | | |
| set of wheels | | | |
| set one's hair on fire | | | |
| set one's shoulder to the wheel | | | |
| set one's watch by someone | | | |
| set pulses racing | | | |
| set straight | | | |
| set the pace | | | |
| set the stage | | | |
| set the wheels in motion | | | |
| settle a score | | | |
| settle in | | | |
| settle one's account | | | |
| settle upon | | | |
| set to work | | | |
| set up shop | | | |
| sex machine | | | |
| sex pact | | | |
| sexual congress | | | |
| sexual relations | | | |
| sex up | | | |
| shacked up | | | |
| shake | | | |
| shake a stick at | | | |
| shake off the dust from one's feet | | | |
| shake the pagoda tree | | | |
| shake up | | | |
| shank-nag | | | |
| shanks' nag | | | |
| shape up | | | |
| share and share alike | | | |
| shark-jumping | | | |
| sharp elbows | | | |
| sharp tongue | | | |
| shave down | | | |
| shed a tear | | | |
| shed find | | | |
| shedload | | | |
| shift gears | | | |
| shifty | | | |
| shimmy on down | | | |
| shit a brick | | | |
| shit in someone's cereal | | | |
| shit one's pants | | | |
| shit or get off the can | | | |
| shit out of luck | | | |
| shit stain | | | |
| shitstorm | | | |
| shitting match | | | |
| shock to the system | | | |
| shoot down | | | |
| shoot first and ask questions later | | | |
| shoot holes | | | |
| shoot off at the mouth | | | |
| shoot oneself in the foot | | | |
| shoot the boots | | | |
| shoot the bull | | | |
| short end of the stick | | | |
| short hairs | | | |
| short of a length | | | |
| short-sheet | | | |
| short temper | | | |
| shotgun approach | | | |
| shot heard round the world | | | |
| shots fired | | | |
| shout fire in a crowded theater | | | |
| shove something down someone's throat | | | |
| show a leg | | | |
| show colour | | | |
| shower down | | | |
| show off | | | |
| show one's cards | | | |
| show one's true colors | | | |
| show someone a good time | | | |
| show someone one's etchings | | | |