| 2viewvideo | 2Way Traffic | 2WayMirror |
| 2waytraffic | 2xist | 2XL |
| 3 | 3 (band) | 3 (doorverwijspagina) |
| 3 (getal) | 3 (Kin Ping Meh) | 3 (Netsky) |
| 3 (single) | 3 (Soulfly) | 3 1/2-inch floppy disk |
| 3 a.m. | 3 akkoorden | 3 And |
| 3 Andromedae | 3 april | 3 April |
| 3 augustus | 3 Augustus | 3 Bad Men |
| 3 Bataljon Parachutisten | 3 Beads of Sweat | 3 Beat Music |
| 3 Blind Mice | 3 blind mice | 3 bodas de más |
| 3 Card Poker | 3 cœurs | 3 center 2 electron |
| 3 center 2 elektron | 3 coeurs | 3 Count Bout |
| 3 Days of Peace & Music | 3 Days to Kill | 3 december |
| 3 December | 3 Doors Down | 3 Doors Down (album) |
| 3 Doors Down(Album) | 3 Ezra | 3 februari |
| 3 Februari | 3 FM | 3 Fonteinen |
| 3 formulieren van enigheid | 3 from Hell | 3 Geezers! |
| 3 Godfathers | 3 Gold Coins | 3 Guys 1 Hammer |
| 3 Henry VI | 3 Idiots | 3 in jazz |
| 3 Inches of Blood | 3 Inches Of Blood | 3 Jacksons |
| 3 januari | 3 Januari | 3 Johannes |
| 3 juli | 3 Juli | 3 Jumps Ahead |
| 3 juni | 3 Juni | 3 Juno |
| 3 Korinte | 3 Korinthe | 3 Korinthiërs |
| 3 Korintiërs | 3 maart | 3 Maart |
| 3 Makkabeeën | 3 Makkabeeen | 3 mei |
| 3 Mei | 3 Men and a Baby | 3 mensen tussen muren |
| 3 Musketeers | 3 Musketiers | 3 Musketiers (musical) |
| 3 Musketiers - de musical | 3 Nations Cup | 3 Needles |
| 3 Nights | 3 november | 3 November |
| 3 October Vereeniging Leiden | 3 oktober | 3 Oktober |
| 3 oktoberfeest | 3 op Reis | 3 op reis |
| 3 op Reis Midweek | 3 pionnengambiet | 3 ringensysteem |
| 3 romances | 3 Romances | 3 Romanze |
| 3 Romanzen | 3 Schténg | 3 Schteng |
| 3 september | 3 September | 3 Steps Ahead |
| 3 Strikes | 3 Tage in Quiberon | 3 Türken und ein Baby |
| 3 uur van Daytona 1962 | 3 uur van Daytona 1963 | 3 v. Chr. |
| 3 v.Chr. | 3 Vallées Express | 3 Valleys |
| 3 van Breda | 3 voor 12 | 3 Women |
| 3 Words | 3 World Trade Center | 3% |
| 3' UTR | 3+2 | 3,14159265... |
| 3,3'-dichloorbenzidine | 3,3-dimethyl-1-buteen | 3,3-dimethyl-2-butanol |
| 3,3-dimethylbutan-1-ol | 3,3-dimethylbutan-2-ol | 3,3-dimethylbutanal |
| 3,3-dimethylbutyraldehyde | 3,4,5-trimethoxyamfetamine | 3,4,5-Trimethoxyamfetamine |
| 3,4,9,10-peryleentetracarbonzuurdianhydride | 3,4-diaminopyridine | 3,4-dichlooraniline |
| 3,4-dichloornitrobenzeen | 3,4-dihydroxykaneelzuur | 3,4-dinitrotolueen |
| 3,4-ethyleendioxythiofeen | 3,4-methyleendioxyamfetamine | 3,4-methyleendioxymethamfetamine |
| 3,4-methylenedioxyamphetamine | 3,5,5,-trimethylcyclohex-2-enon | 3,5,5-trimethyl-1-hexanol |
| 3,5,5-trimethylhexaan-1-ol | 3,5,5-trimethylhexaanzuur | 3,5,5-trimethylhexanol |
| 3,5-dichloorfenol | 3,6-acridinediamine | 3,7 cm KwK 36 |
| 3-1 | 3-2-1 Regel | 3-2-1 regel |
| 3-2-1-regel | 3-akkoorden | 3-akkoorden techniek |
| 3-aminobenzeensulfonzuur | 3-aminofenol | 3-broomthiofeen |
| 3-buteennitril | 3-careen | 3-center-2-elektronbinding |
| 3-center-4-elektronbinding | 3-centra-2-elektronbinding | 3-centra-4-elektronbinding |
| 3-chloor-1,2-propaandiol | 3-chlooraniline | 3-chloorbenzaldehyde |
| 3-chloorbenzoëzuur | 3-chloorfenol | 3-chloormethcathinon |
| 3-Chloormethcathinon | 3-chloorperoxybenzoëzuur | 3-chloorperoxybenzoezuur |
| 3-chloorpropaan-1,2-diol | 3-chloorpropeen | 3-chloorpropyn |
| 3-CMC | 3-D | 3-D Bowling |
| 3-D film | 3-D Tic-Tac-Toe | 3-Demon |
| 3-heptanon | 3-hexanol | 3-hexyn |
| 3-hydroxy-3-methylbutaanzuur | 3-hydroxybutaanzuur | 3-Hydroxybutaanzuur |
| 3-hydroxybutanal | 3-hydroxypyridine | 3-MCPD |
| 3-mercapto-1,2-propaandiol | 3-mercapto-3-methyl-1-butanol | 3-mercapto-3-methylbutaan-1-ol |
| 3-mercapto-3-methylbutan-1-ol | 3-mercaptopropaan-1,2-diol | 3-methyl-1-butanol |
| 3-methyl-1-butylacetaat | 3-methyl-2-butanon | 3-methyl-2-buteen-1-thiol |
| 3-methyl-5-fenylpentanol | 3-methylbutaan-1-ol | 3-methylbutaanzuur |
| 3-methylbutan-1-ol | 3-methylbutanal | 3-methylcyclohexanol |
| 3-methylhexaan | 3-methylideencyclopropeen | 3-methylmethcathinon |
| 3-Methylmethcathinon | 3-methylpentaan | 3-methylpentan-1-ol |
| 3-methylpentan-2-ol | 3-methylpentan-3-ol | 3-methylpyridine |
| 3-methylthiopropanal | 3-Minute Warning | 3-MMC |
| 3-nitroaniline | 3-nitrotolueen | 3-oktoberfeest |
| 3-oxetanon | 3-oxobutaanzuur | 3-Pentanol |
| 3-pentanol | 3-pentanon | 3-Pentanon |
| 3-picoline | 3-pionnengambiet | 3-ponder |
| 3-propanolide | 3-propylideenftalide | 3-ringensysteem |
| 3-sfeer | 3-slagstelsel | 3-sulfoleen |
| 3-transpositiegroep | 3-variëteit | 3-varieteit |
| 3-vinyltolueen | 3. Bundesliga | 3. deild karla |
| 3. Division | 3. division | 3. divisjon |
| 3. HNL | 3. Hrvatska Nogometna Liga | 3. Hrvatska Nogometna Liga (1991-2022) |
| 3. lig | 3. Lig | 3. Liga |
| 3. Liga (2009/2010) | 3. Liga (Zwitserland) | 3. Liga 2008/09 |
| 3. Liga 2009/10 | 3. Liga 2010/11 | 3. Liga 2011/12 |
| 3. Liga 2012/13 | 3. Liga 2013/14 | 3. Liga 2014/15 |
| 3. Liga 2015/16 | 3. Liga 2016/17 | 3. Liga 2017/18 |
| 3. Liga 2018/19 | 3. Liga 2019/20 | 3. Limfjordsforbindelse |
| 3. Marineflakregiment | 3. slovenska nogometna liga | 3. Slovenska Nogometna Liga |
| 3. slovenská futbalová liga | 3. SNL | 3. SS-Panzer-Division Totenkopf |
| 3. Unterseebootsflottille | 3.000 m (atletiek) | 3.000 m steeplechase |
| 3.14 | 3.5 mm jack | 3.5G |
| 3.7 cm KwK 36 | 3.75G | 3/2 weg ventiel |
| 30 | 30 (Adele) | 30 (getal) |
| 30 april | 30 April | 30 augustus |
| 30 Augustus | 30 Days of Night | 30 days of night |
| 30 december | 30 December | 30 Doradus |
| 30 februari | 30 hits in een box | 30 Hits in een Box |
