| 4 by the Beatles | 4 Children for Sale | 4 de Julho EC |
| 4 december | 4 December | 4 deuren en 40 treden |
| 4 Devils | 4 dimensionale achtbaan | 4 Element voor Medische Interventie |
| 4 Elementen | 4 Elements | 4 Elements (film) |
| 4 Eylül Stadion | 4 eylul stadion | 4 Eylul Stadion |
| 4 Ezra | 4 Ezra (apocrief) | 4 februari |
| 4 Februari | 4 Flicks | 4 for Texas |
| 4 Fun | 4 Fun (Nederlandse band) | 4 heemskinderen |
| 4 in 't land | 4 in het Land | 4 in the Morning |
| 4 In The Morning | 4 januari | 4 Januari |
| 4 jours de Dunkerque | 4 juli | 4 Juli |
| 4 juni | 4 Juni | 4 K-model |
| 4 kapi 40 makam | 4 kinderen te koop | 4 Kinderen te Koop |
| 4 klepper | 4 Letter Word | 4 life |
| 4 Life | 4 luni, 3 saptamani si 2 zile | 4 luni, 3 saptamâni si 2 zile |
| 4 luni, 3 săptămâni şi 2 zile | 4 maanden, 3 weken & 2 dagen | 4 Maanden, 3 Weken & 2 Dagen |
| 4 maart | 4 Maart | 4 Makkabeeën |
| 4 Makkabeeen | 4 mei | 4 Mei |
| 4 mei incident | 4 Mei-Beweging | 4 Mei-beweging |
| 4 mei-beweging | 4 mei-compositie | 4 Mei-Projekt |
| 4 meicompositie | 4 mijl | 4 Mijl van Groningen |
| 4 mijl van Groningen | 4 Minuten | 4 Minutes |
| 4 Months, 3 Weeks & 2 Days | 4 Months, 3 Weeks and 2 Days | 4 My People |
| 4 Non Blondes | 4 november | 4 November |
| 4 oktober | 4 Oktober | 4 ondeugden in Rio |
| 4 Seizoenen | 4 september | 4 September |
| 4 Star Records | 4 Strings | 4 takt |
| 4 the win | 4 Tune Fairytales | 4 v. Chr. |
| 4 v.Chr. | 4 van Breda | 4 Vesta |
| 4 Vesta (planetoïde) | 4 way street | 4 Way Street |
| 4 World Trade Center | 4 x 100 | 4 x 100 m estafette |
| 4 x 100 meter | 4 x 100 meter estafette | 4 x 200 meter estafette |
| 4 x 4 van het jaar | 4 x 400 | 4 x 400 m |
| 4 x 400 m estafette | 4 x 400 meter | 4 x 400 meter estafette |
| 4 x Stephen King | 4 Your Soul | 4',6-diamidino-2-fenylindole |
| 4',6-diamidino-2-fenylindool | 4',6-diamidino-2-phenylindole | 4'33" |
| 4,4'-bifenol | 4,4'-diaminodicyclohexylmethaan | 4,4'-dimethylaminobenzofenon |
| 4,4'-methyleendianiline | 4,4'-methyleendifenyldiisocyanaat | 4,4-dimethyloxazolidine |
| 4,4-Dimethyloxazolidine | 4,5,6 | 4,6-dinitro-o-cresol |
| 4,6692016091... | 4-(2,4-dichloorfenoxy)butaanzuur | 4-(4'-hydroxyfenyl)butaan-2-on |
| 4-(4-Hydroxyfenyl)butaan-2-on | 4-(4-hydroxyfenyl)butaan-2-on | 4-0 systeem |
| 4-0-systeem | 4-20 mA | 4-20 mA loop |
| 4-4-2-formatie | 4-72 Colombia | 4-72-Colombia |
| 4-aceetanisol | 4-aminobenzeensulfonzuur | 4-aminobifenyl |
| 4-aminodifenyl | 4-aminodifenylamine | 4-armentunnel |
| 4-bit | 4-bits | 4-chloor-3-methylfenol |
| 4-chlooraniline | 4-chloorbenzaldehyde | 4-chloorbenzoëzuur |
| 4-chloorbenzoezuur | 4-chloorbenzotrichloride | 4-chloorbenzotrifluoride |
| 4-chloorfenol | 4-chloornitrobenzeen | 4-cumaarzuur |
| 4-cyclohexyl-2-methyl-2-butanol | 4-D film | 4-D Warriors |
| 4-dimethylaminoazobenzeen | 4-dimethylaminopyridine | 4-ethylmorfoline |
| 4-FA | 4-hexylresorcinol | 4-Hexylresorcinol |
| 4-hydroxy-4-methylpentan-2-on | 4-hydroxybenzaldehyde | 4-hydroxybenzoëzuur |
| 4-hydroxybenzoezuur | 4-hydroxybutaanzuur | 4-hydroxyfenylpyrodruivenzuur |
| 4-Hydroxyfenylpyrodruivenzuur | 4-hydroxykaneelzuur | 4-LOM |
| 4-MA | 4-meicompositie | 4-methoxy-4-methyl-2-pentanon |
| 4-methoxyacetofenon | 4-methoxybenzaldehyde | 4-methoxybenzoëzuur |
| 4-methoxybenzoezuur | 4-methoxyfenol | 4-methoxymethamfetamine |
| 4-methyl-1-pentanol | 4-methyl-1-penteen | 4-methyl-2-pentanol |
| 4-methyl-3-penteen-2-on | 4-methyl-pentan-2-ol | 4-methyl-pentan-2-on |
| 4-methylamfetamine | 4-methylcyclohexanol | 4-methylmorfoline |
| 4-methylmorfoline-4-oxide | 4-methylmorfolineoxide | 4-methylpent-1-een |
| 4-methylpentaan-2-ol | 4-methylpentan-1-ol | 4-methylpentan-2-ol |
| 4-methylpyridine | 4-methylthioamfetamine | 4-MTA |
| 4-nitro-N-fenylaniline | 4-nitro-N-fenylbenzeenamine | 4-nitro-n-fenylbenzeenamine |
| 4-nitroaniline | 4-nitrochloorbenzeen | 4-nitrodifenylamine |
| 4-nitrofenol | 4-nitrofenylfosfaat | 4-nitrotolueen |
| 4-picoline | 4-piperidinon | 4-pyridon |
| 4-pyron | 4-Sight Records | 4-takt |
| 4-tert-butylbenzaldehyde | 4-tert-butylfenol | 4-tolueensulfonylchloride |
| 4-tolueensulfonzuur | 4-Track Demos | 4-variëteit |
| 4-varieteit | 4-vector | 4-vinylbenzoëzuur |
| 4-vinylbenzoezuur | 4-vinylcyclohexeen | 4-vinylpyridine |
| 4-vinyltolueen | 4. deild karla | 4. SS-Polizei-Panzergrenadier-Division |
| 4. Unterseebootsflottille | 4.20 | 4.25 Sports Club |
| 4.25 Sports Group | 4/4 beat | 4/4 MAAT |
| 4/5 | 40 | 40 (doorverwijspagina) |
| 40 (getal) | 40 (producer) | 40 (U2) |
| 40 dagen zonder seks | 40 dagentijd | 40 Days and 40 Nights |
| 40 Eridani | 40 GbE | 40 Gigabit Ethernet |
| 40 hours | 40 jaar Bassie en Adriaan | 40 jaar staatkundige onafhankelijkheid |
| 40 Licks | 40 M Turan I | 40 Pounds of Trouble |
| 40 treden trap | 40 tredentrap | 40 v. Chr. |
| 40 v.Chr. | 40 Wall Street | 40 wijken van Vogelaar |
| 40'er jaren | 40-45 | 40-49 |
| 40-50 | 40-er jaren | 40-tredentrap |
| 40-urige werkweek | 40. SS-Panzergrenadier-Division Feldherrnhalle | 400 |
| 400 Beethoven | 400 Beethovenstraat | 400 East Ohio Street |
| 400 Geneeskundig Bataljon | 400 m (atletiek) | 400 m horden |
| 400 meter | 400 meter (atletiek) | 400 meter horden |
| 400 v. Chr. | 400 v.Chr. | 400-409 |
| 400. Ersatz-Division | 4000 v.Chr. | 4000-3500 v. Chr. |
| 4000-3500 v.Chr. | 4004 | 4004 (processor) |
| 4004 v. Chr. | 400e Ersatz-Division | 400m horden |
| 401 | 401 East Ontario | 401 v. Chr. |
| 401 v.Chr. | 402 | 402 (stamnummer) |
| 402 v. Chr. | 402 v.Chr. | 402. Ausbildungs-Division |
| 402e Ausbildungs-Division | 402e Opleidingsdivisie | 403 |
| 403 v. Chr. | 403 v.Chr. | 403-verklaring |
| 403. Sicherungs-Division | 403e Beveiligingsdivisie | 403e Beveiligingsdivisie (Duitsland) |
