A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
| S | Scar, Sewer, Side of, Slope, Sluice, Stone, Stream |
| S | Side, Spur, Square, Stairs, Steps, Strand, Street |
| S | Sink; Sink Stones |
| S | South |
| S | Stone |
| S | Street (mereing) |
| SA | Salvation Army |
| Salop | Shropshire |
| SANatm | Sanatorium |
| SAND | Sub-Areas Name Diagram |
| SB | Signal Box |
| S Br | Signal Bridge |
| Sc | Scrub |
| SC | Stop Cock |
| (Scat) | Scattered (density) |
| Sch | School |
| SD | Side |
| SD | Single Drain or Ditch |
| Sd | Sound |
| SD | Strand |
| SD | Strand |
| SD | Sun Dial |
| Sec | Secondary |
| Selk | Selkirkshire |
| Sep | September |
| SF | ??? |
| SF | Side of Fence, Furrow, etc |
| SG | Sewer Grate |
| S Gantry | Signal Gantry |
| S Glam | South Glamorgan |
| SH | Summer House |
| Sh Fd | Sheep Fold |
| Sk | Sketched |
| Sks | Sinks |
| SL | Signal Lamp |
| SL | Signal Light |
| Sl | Sluice |
| SM | Sloping Masonry |
| Smy | Smithy |
| SN | Scientific Network |
| Somer | Somerset |
| SP | Sewer Pipe |
| SP | Signal Post |
| Sp | Spire |
| Sp | Spreads |
| SP | Spur |
| Spr | Spring |
| Sq | Square |
| SQ | Square |
| SR | Side of River |
| SRS | Stairs |
| SS | Saints |
| SS | Single Stream |
| SSlip | Single Slip |
| St | Saint |
| ST | Spring Tides |
| ST | Stable |
| St | Stone |
| St | Street |
| Sta | Station |
| Staf | Staffordshire [pre-1974] |
| Staffs | Staffordshire [post-1974] |
| S Sta | Signal Station |
| Std | Standard |
| Stirl | Stirlingshire |
| Stn | Station |
| STPS | Steps |
| STRS | Stairs |
| STS | Steps |
| Sts | Steps |
| Suff | Suffolk |
| Sun Sch | Sunday School |
| Sur | Surface |
| Sur B | Surface Block |
| Surrey | Surrey |
| Sussex | Sussex |
| Suther | Sutherland |
| SV | Sewer Vent? |
| SV | Spirit Vaults |
| SW | Sloping Wall |
| Sw | Switch |
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