| Decima | Decimal | Decimal tid |
| Decimala talsystemet | Decimalbråk | Decimaler |
| Decimalkomma | Decimalkommatecken | Decimalpunkt |
| Decimalsystem | Decimalsystemet | Decimalt |
| Decimaltal | Decimaltecken | Decimaltid |
| Decimaltum | Decimalutveckling | Decimering |
| Decimeter | Decimiana | Decimiana bolivari |
| Decimiana clavata | Decimiana hebardi | Decimiana rehni |
| Decimiana tessellata | Decimomannu | Decimoprimera Región |
| Decimoputzu | Decimus Burton | Decimus Clodius Septimus Albinus |
| Decimus Junius Brutus Albinus | Decimus Laberius | Decimus Magnus Ausonius |
| Decin | Decinea | Decinea dama |
| Decines-Charpieu | Decinska vrchovina | Decinsky Sneznik |
| Decio Azzolini d.y. | Decio Azzolino | Decio Azzolino den äldre |
| Decio Azzolino den yngre | Decipha | Decipha addita |
| Decipha angulata | Decipha berenice | Decipha bianor |
| Decipha boulardi | Decipha demota | Decipha dominicensis |
| Decipha lamabokensis | Decipha nigrolimbata | Decipha sarpedon |
| Decipha theano | Decipha trifidia | Decipha trifidus |
| Decipha vanderplaetseni | Deciphering Me | Decipifus |
| Decipifus sixaolus | Decipiphantes | Decipiphantes decipiens |
| Decirhynchus | Decisekund | Decitid |
| Deciton | Decius | Decius termer |
| Decius, Nicolaus | Decivolt | Decize |
| Deck D'Arcy | Deck the Hall | Deck The Hall |
| Deck the Halls | Deckar | Deckarakademin |
| Deckare | Deckarförfattare | Deckarfilm |
| Deckarserie | Deckarserier | Deckenbachia consuens |
| Deckenia | Deckenia nobilis | Deckenpfronn |
| Deckentoko | Decker | Decker Glacier |
| Decker Glacier (glaciär i Antarktis) | Decker Lake | Decker Lake (sjö i Kanada) |
| Decker, Henry | Decker, Indiana | Decker, Karl |
| Decker, Pierre de | Decker, Theodor | Decker-Molina, Carlos |
| Decker-Slaney, Mary | Deckeria corneto | Deckeria lamarckiana |
| Deckeria phaeocarpa | Deckeria ventricosa | Deckert, Manfred |
| Deckner, Eva | Deckner, John Ivar | Declan Chisholm |
| Declan Desmond | Declan Donnellan | Declan Donnelly |
| Declan Galbraith | Declan Gallagher | Declan Ganley |
| Declan MacManus | Declan O'Rourke | Declan Rice |
| Declan's Moon | Declana | Declana callista |
| Declana crassitibia | Declana feredayi | Declana floccosa |
| Declana glacialis | Declana griseata | Declana hermione |
| Declana junctilinea | Declana leptomera | Declana nigrosparsa |
| Declana niveata | Declana scabra | Declana sinuosa |
| Declana toreuta | Declana verrucosa | Declaration of Arbroath |
| Declaration of Independence | Declaration of Indulgence | Declaration of Rights |
| Declare Independence | Decleir, Jan | Declier Creek |
| Declieuxia | Declieuxia alba | Declieuxia alfredii |
| Declieuxia anceps | Declieuxia aspalathoides | Declieuxia bouvardioides |
| Declieuxia bradei | Declieuxia brasiliensis | Declieuxia brevicollis |
| Declieuxia cacuminis | Declieuxia calophylla | Declieuxia chiococcoides |
| Declieuxia chiococcoides subsp. mexicana | Declieuxia chiococcoides var. genuina | Declieuxia chiococcoides var. guyanensis |
| Declieuxia chiococcoides var. hirta | Declieuxia chiococcoides var. linearis | Declieuxia chiococcoides var. lucida |
| Declieuxia chiococcoides var. mexicana | Declieuxia chiococcoides var. opaca | Declieuxia chiococcoides var. pallida |
| Declieuxia chiococcoides var. papillosa | Declieuxia chiococcoides var. puberula | Declieuxia chiococcoides var. puberulina |
| Declieuxia chiococcoides var. vincoides | Declieuxia clinopodioides | Declieuxia coerulea |
| Declieuxia cordigera | Declieuxia cordigera var. divergentiflora | Declieuxia cordigera var. genuina |
| Declieuxia daphnoides | Declieuxia daphnoides var. genuina | Declieuxia daphnoides var. glabra |
| Declieuxia daphnoides var. minor | Declieuxia dasyphylla | Declieuxia dasyphylla f. ciliolata |
| Declieuxia decumbens | Declieuxia deltoidea | Declieuxia diamantinae |
| Declieuxia diantheroides | Declieuxia divergentiflora | Declieuxia dusenii |
| Declieuxia ericoides | Declieuxia foliosa | Declieuxia frankenioides |
| Declieuxia fruticosa | Declieuxia fruticosa var. guyanensis | Declieuxia fruticosa var. mexicana |
| Declieuxia galeottii | Declieuxia galioides | Declieuxia glabra |
| Declieuxia glauca | Declieuxia glauca var. subdecurrens | Declieuxia gracilis |
| Declieuxia hatschbachii | Declieuxia hedemoides | Declieuxia herbacea |
| Declieuxia humilis | Declieuxia imbricata | Declieuxia irwinii |
| Declieuxia juniperina | Declieuxia lancifolia | Declieuxia leiophylla |
| Declieuxia lysimachioides | Declieuxia marioides | Declieuxia mexicana |
| Declieuxia minutifolia | Declieuxia mollis | Declieuxia mucronulata |
| Declieuxia muscosa | Declieuxia oenanthoides | Declieuxia oenanthoides var. genuina |
| Declieuxia oenanthoides var. humilis | Declieuxia oenanthoides var. longifolia | Declieuxia oenanthoides var. stenophylla |
| Declieuxia origanoides | Declieuxia orthophylla | Declieuxia passerina |
| Declieuxia peruviana | Declieuxia pruinosa | Declieuxia prunelloides |
| Declieuxia psychotrioides | Declieuxia pulverulenta | Declieuxia revoluta |
| Declieuxia rhexioides | Declieuxia rubioides | Declieuxia saturejoides |
| Declieuxia saturejoides var. genuina | Declieuxia saturejoides var. thymbroides | Declieuxia scabra |
| Declieuxia schwackei | Declieuxia selloana | Declieuxia spergulifolia |
| Declieuxia spergulifolia var. genuina | Declieuxia spergulifolia var. longifolia | Declieuxia stenocardia |
| Declieuxia tenuiflora | Declieuxia thymbroides | Declieuxia verticillata |
| Declieuxia vincoides | Decline and Fall of the Freudian Empire | Declivara |
| Declivara ornamenta | Declivocondyloides | Declivocondyloides loebli |
| Declotila | Declotila albomarginata | Decma |
| Decma birmanica | Decma bispinosa | Decma bolivari |
| Decma elefani | Decma fissa | Decma improvisum |
| Decma inversa | Decma miramae | Decma nigrovertex |
| Decma orlovi | Decma predtetshenskyi | Decma stshelkanovtzevi |
| Decma thai | Decma tristis | Decne. |
| DECnet | Deco | Deco keramik |
| Deco Keramikfabrik | Decodes | Decodes aneuretus |
| Decodina | Decodina mazatlana | Decoding the Tomb of Bansheebot |
| Decodon | Decodon (djur) | Decodon (växter) |
| Decodon aquaticus | Decodon grandisquamis | Decodon melasma |
| Decodon myrtifolius | Decodon pacificus | Decodon puellaris |
| Decodon salicifolius | Decodon verticillatus | Decodon verticillatus var. laevigatus |
| Decollatura | Decolletage | Decolltage |
| Decolopoda | Decolopoda antarctica | Decolopoda australis |
| Decoltage | Decolya | Decolya confusa |
| Decolya elegans | Decolya inexspectata | Decolya kalugallae |
| Decolya kelletti | Decolya kotoshoensis | Decolya mousakandae |
