- semibreve
- semibreves
- semicentennial
- semicircle
- semicircular canal
- semicivilized
- semiclassic
- semiclassical
- semicolon
- semicolon
- semicoma
- semiconductor
- semiconductor laser
- semiconscious
- semiconscious
- semiconservative
- semidarkness
- semidesert
- semidetached
- semidetacheds
- semidiameter
- semidiurnal
- semidivine
- semidocumentary
- semidome