| smog | smog |
| smog warning | aviso de niebla 'smog' |
| smoke | humo |
| smoke bomb | bomba de humo |
| smoke explosion | explosión de humo |
| smoke like a chimney | fumar como un carretero |
| Smoke on the Water | Smoke on the Water |
| smoke screen | cortina de humo |
| smoke-dried meat | carne ahumada |
| Smokebox | Fumaria |
| smoked | ahumado |
| Smoked beer | Rauchbier |
| smoked glass | cristal ahumado |
| Smoked salt | Sal ahumada |
| Smokejumper | Bomberos paracaidistas |
| smokeless | sin humo |
| smoker | fumador |
| smokers | fumador |
| smokescreen | cortina de humo |
| smokestack | chimenea |
| smoking | fumar |
| Smoking ban in England comes into force | Prohíben fumar en Inglaterra |
| smoky | humeante |
| smoky quartz | cuarzo ahumado |
| smolder | arder |
| Smolensk | Smolensk |
| Smolensk Oblast | Óblast de Smolensk |
| smooch | besuquearse |
| smooth | suavizar |
| smooth away | hacer desaparecer |
| smooth down | alisar |
| smooth out | corregir |
| Smooth skate | Anacanthobatidae |
| smooth snake | culebra lisa europea |
| Smooth-billed Ani | Crotophaga ani |
| smoothing | pulimento |
| smoothly | fácilmente |
| smoothness | pulimento |
| SmoothWall | SmoothWall |
| smother | estrangular |
| smother with | cubrir de |
| SMP | Multiprocesamiento simétrico |
| SMS | Servicio de mensajes cortos |
| SMS Blücher | Blücher |
| SMS Dresden | SMS Emden |
| SMS Emden | SMS Emden |
| SMS Gneisenau | Gneisenau |
| SMS language | Lenguaje XAT |
| SMS Scharnhorst | Scharnhorst |
| smudge | manchar |
| smudges | manchado |
| smudginess | horrura |
| smudging | ensuciamiento |
| smudgy | untuoso |
| smug | engreído |
| smuggle | traer a escondidas |
| smuggler | contrabandista |
| smuggling | contrabando |
| smugness | autosuficiencia |
| smurf | pitufo |
| Smurf attack | Smurf ataque |
| Smurfs | Pitufo |
| smut | polvillo |
| smutty | manchado |
| Smyrna | Esmirna |
| Småland | Småland |
| Smörgåsbord | Smörgåsbord |
| Sn | Estaño |
| SN Brussels Airlines | SN Brussels Airlines |
| snack | bocado |
| snack bar | cantina |
| Snackbar | Imbiss |
| snag | tropiezo |
| snag on | rasgarse con |
| Snagglepuss | Cartoon Network Studios |
| snail | holgazán |
| Snail Kite | Rostrhamus sociabilis |
| snail mail | correo ordinario |
| snail's pace | paso de tortuga |
| snails | caracoles |
| snake | víbora |
| snake charmer | encantador de serpientes |
| Snake Island | Isla de las Serpientes |
| Snake Jailbird | Snake Jailbird |
| Snake Kung Fu | Kung Fu de la Serpiente |
| Snake River | Río Snake |
| snakebite | mordedura de serpiente |
| Snakeboard | Snakeboard |
| Snakefinger | Snakefinger |
| snakelet | viborezno |
| Snakes-and-ladders | Juego de la Oca |
| snaky | sinuoso |
| snap | partirse |
| snap at | hablar bruscamente |
| snap fastener | corchete de presión |
| snap off | romperse |
| snap out | demoler |
| snap shut | cerrarse de golpe |
| snapdragon | dragón |
| snappily | vibrante |
| snappish | seco |
| snappishness | irritabilidad |
| snappy | animado |
| snapshot | instantánea |
| snare | trampa |
| snare drum | caja |
