| sell slowly | ser poco solicitado |
| Sell well | Tener salida |
| sell-by date | fecha de vencimiento |
| Sella River | Río Sella |
| Sellafield | Sellafield |
| Sellapan Ramanathan | Sellapan Rama Nathan |
| seller | vendedor |
| selling | venta |
| Selling by auction | Subasta |
| Selling technique | Técnicas de ventas |
| Sellotape | Celo adhesivo |
| Selma | Salma |
| Selma Björnsdóttir | Selma Björnsdóttir |
| Selma Lagerlöf | Selma Lagerlöf |
| Selman Waksman | Selman Abraham Waksman |
| Selo | Pueblo |
| selvage | borde |
| selvedge | borde |
| Selzach | Selzach |
| SEM | Sem |
| Sema | Sema |
| Semacode | Semacode |
| Semaeostomeae | Semaeostomeae |
| Semang | Semang |
| semantic | semántica |
| semantic field | campo semántico |
| Semantic gap | Intervalo semántico |
| Semantic Web | Web semántica |
| semantically | semánticamente |
| semanticist | semántico |
| semantics | semiología |
| semaphore | semáforo |
| semasiology | semiología |
| semblance | semejanza |
| Sembrancher | Sembrancher |
| semeiology | semiología |
| semeiotics | semiología |
| Semele | Sémele |
| semelfactive | semelfactivo |
| semelfactive aspect | aspecto |
| semen | semen |
| Semenkare | Semenkara |
| Sementina | Sementina |
| Semerkhet | Semerjet |
| semester | semestre |
| Semetic | Semitas |
| Semey | Semey |
| semi | semi |
| semi- | semi- |
| Semi-arid climate | Clima semiárido |
| Semi-automatic firearm | Arma semiautomática |
| Semi-circle | Arco |
| semi-deponent | semideponente |
| Semi-finished products | Producto semiacabado |
| Semi-free software | Software semilibre |
| Semi-major axis | Semieje mayor |
| semi-metal | semimetal |
| Semi-minor axis | Semieje menor |
| Semi-presidential system | República semipresidencialista |
| semi-quaver | semicorchea |
| semi-skimmed | semidesnatado |
| Semiarundinaria | Semiarundianaria fastuosa |
| semiautomatic | semiautomático |
| Semichi Islands | Semichi Islands |
| semicircle | semicírculo |
| semicircular | semicircular |
| semicolon | colon |
| semiconductor | semiconductor |
| Semiconductor device fabrication | Fabricación de circuitos integrados |
| Semiconductor devices | Semiconductor |
| Semiconductor fabrication | Fabricación de circuitos integrados |
| semiconscious | semiconsciente |
| semidetached | separado por una pared medianera |
| Semidetached binary star | Binaria semi-resuelta |
| semidetached house | dúplex |
| Semien Mountains National Park | Parque Nacional de Simen |
| semifinal | semifinal |
| semifinalist | semifinalista |
| semifluid | semiflúido |
| semimonthly | bimensual |
| seminal | seminal |
| seminal vesicle | vesícula seminal |
| seminar | seminario |
| seminarist | seminarista |
| seminary | seminario |
