| Signaalprijs | Signaalroute | Signaalsequentie |
| Signaalstof | Signaalstoffen | Signaaltransductie |
| Signaalverwerking | Signaalvlag | Signaalwespbij |
| Signaalwoord | Signabøur | Signabour |
| Signac | Signagi | Signagi (district) |
| Signagi (gemeente) | Signagi (stad) | Signal |
| Signal (Laura Jansen) | Signal (software) | Signal (tandpasta) |
| Signal de Botrange | Signal du Grand Mont-Cenis | Signal du Petit Mont-Cenis |
| Signal Fire | Signal Hill | Signal Hill (Californië) |
| Signal Hill (Sint Maarten) | Signal Hill (St. John's) | Signal Hill (VS) |
| Signal Iduna Park | Signal Mountain | Signal Mountain (Tennessee) |
| Signal Mountain (Wyoming) | Signal Records | Signal to Noise |
| Signalement | Signalement van een monster | Signalen |
| Signalering | Signalisatie | Signalisation des Voies de Navigations Intérieuré |
| Signalisation des Voies de Navigations Intérieure | Signalisation des Voies de Navigations Interieure | Signalkuppe |
| Signalosa atchafalayae | Signalosa atchafalayae vanhyningi | Signalosa mexicana campi |
| Signals | Signaphora ruficornis | Signature |
| Signature Records | Signature Team | Signatuur |
| Signatuur (natuurkunde) | Signatuurleer | Signatuurreductie |
| Signau | Signau (district) | Signau (gemeente) |
| Signéville | Signe | Signe (schip, 1897) |
| Signe Anderson | Signe Bruun | Signe Hille |
| Signe Hornborg | Signe Lund | Signe Lund (componist) |
| Signe Lund-Aspenström | Signe Tollefsen | Signe Toly Anderson |
| Signe Winderen | Signed and Sealed in Blood | Signed by The Cats |
| Signed By The Cats | Signed Sealed and Delivered | Signed Sealed Delivered |
| Signed, Sealed & Delivered | Signed, Sealed & Delivered (album van Stevie Wonder) | Signed, Sealed, Delivered |
| Signed, Sealed, Delivered (I'm Yours) | Signed, Sealed, Delivered I'm Yours | Signed, Sealed, Delivered, I'm Yours |
| Signeersessie | Signehög, Nedre Bäck en Kållen | Signehog, Nedre Back en Kallen |
| Signes | Signet | Signeta |
| Signeta flammeata | Signeta tymbophora | Signeulx |
| Signeville | SIGNI | Signifer |
| Significa | Significaat (taalkunde) | Significant |
| Significant (statistiek) | Significant (taalkunde) | Significant (zwevendekommagetal) |
| Significant cijfer | Significant Others | Significant verschillend |
| Significante cijfers | Significante golfhoogte | Significantie |
| Significs | Signifische Kring | Signify |
| Signigobius | Signigobius biocellatus | Signilskär |
| Signiphora | Signiphora (Matritia) conjugalis | Signiphora (Neosigniphora) longiclava |
| Signiphora (Signiphorella) merceti | Signiphora (Signiphorina) subaenea | Signiphora (Xana) kurdjumovi |
| Signiphora aleyrodis | Signiphora argentina | Signiphora aspidioti |
| Signiphora australica | Signiphora australiensis | Signiphora basilica |
| Signiphora beethoveni | Signiphora bifasciata | Signiphora borinquensis |
| Signiphora caridei | Signiphora citrifolii | Signiphora coleoptrata |
| Signiphora coleoptratus | Signiphora conjugalis | Signiphora coquilletti |
| Signiphora corvina | Signiphora dactylopii | Signiphora desantisi |
| Signiphora dipterophaga | Signiphora euclidi | Signiphora fasciata |
| Signiphora fax | Signiphora flava | Signiphora flavella |
| Signiphora flavo-palliatus | Signiphora flavopaliata | Signiphora flavopalliata |
| Signiphora flavopalliatus | Signiphora frequentior | Signiphora funeralis |
| Signiphora giraulti | Signiphora hyalinipennis | Signiphora insularis |
| Signiphora kurdjumovi | Signiphora longiclava | Signiphora louisianae |
| Signiphora lutea | Signiphora maculata | Signiphora magniclava |
| Signiphora magniclavus | Signiphora maxima | Signiphora melancholica |
| Signiphora merceti | Signiphora mexicana | Signiphora nigra |
| Signiphora nigrella | Signiphora nigrita | Signiphora noacki |
| Signiphora occidentalis | Signiphora perpauca | Signiphora platensis |
| Signiphora polistomyiella | Signiphora pulcher | Signiphora pulchra |
| Signiphora rectrix | Signiphora reticulata | Signiphora rhizococci |
| Signiphora ruskini | Signiphora simillima | Signiphora thoreauini |
| Signiphora thusanoides | Signiphora townsendi | Signiphora towsendi |
| Signiphora tumida | Signiphora unifasciata | Signiphora woolleyi |
| Signiphora xanthographa | Signiphora zosterica | Signiphoridae |
| Signiphorina elongata | Signiphorina mala | Signiphorina subaenea |
| Signochrysa | Signochrysa bakeri | Signochrysa buruensis |
| Signochrysa caliptera | Signochrysa catenulata | Signochrysa jocaste |
| Signochrysa mira | Signochrysa ornatissima | Signochrysa rizali |
| Signochrysa signatipennis | Signohealdia | Signor Bruschino |
| Signor-Lipps-effect | Signor-Lippseffect | Signore & signori |
| Signore e signori | Signore e signori, buonanotte | Signorelli |
| Signorelli (motorfiets) | Signorets steltwants | Signoria |
| Signosoma | Signosomopsis | Signpost Corner |
| Signs | Signs (film) | Signs (Gert Emmens en Ruud Heij) |
| Signs (single) | Signs (Tedeschi Trucks Band) | Signs in the sand |
| Signs of Mokum | Signum | Signum (artiest) |
| Signum (wiskunde) | Signum Laudis | Signum legionum |
| Signum linguae | Signum Regis | Signum regis |
| Signuno | SignWriting | Signy Aarna |
| Signy Coleman | Signy-Avenex | Signy-l'Abbaye |
| Signy-le-Petit | Signy-Montlibert | Signy-Signets |
| Sigodang | Sigodang Barat | Sigodang Tua |
| Sigodung | Sigogne | Sigolang |
| Sigolang (Aek Bilah) | Sigolang (Andam Dewi) | Sigoldulon |
| Sigolin | Sigolinus van Stavelot | Sigolsheim |
| Sigompul | Sigonce | Sigong |
| SIGOPS | Sigorbus Julu | Sigordang |
| Sigotom Julu | Sigottier | Sigoulès |
| Sigoulès-et-Flaugeac | Sigoules | Sigournais |
| Sigournea | Sigourney | Sigourney (Iowa) |
| Sigourney Bandjar | Sigourney K | Sigourney K. |
| Sigourney Korper | Sigourney Weaver | Sigoyer |
| Sigoyer (Alpes-de-Haute-Provence) | Sigoyer (Hautes-Alpes) | SIGPLAN |
| Sigríður Beinteinsdóttir | Sigríd Storråda | Sigrið av Skarði Joensen |
| Sigrid | Sigrid (inslagkrater) | Sigrid (voornaam) |
| Sigrid (zangeres) | Sigrid Arnoldson | Sigrid av Skardi Joensen |
| Sigrid Blomberg | Sigrid Braam | Sigrid Combüchen |
| Sigrid Combuchen | Sigrid de Hoogmoedige | Sigrid Dybedahl |
| Sigrid Fick | Sigrid Goethals | Sigrid Hof |
| Sigrid Kaag | Sigrid Koetse | Sigrid Lang |
| Sigrid Lindberg | Sigrid Mutscheller | Sigrid Rondelez |
