| 4 (Johan) | 4 april | 4 April |
| 4 augustus | 4 Augustus | 4 Augustusstadion |
| 4 augustusstadion | 4 avonturen van Robbedoes | 4 avonturen van Robbedoes en Kwabbernoot |
| 4 × 100 | 4 × 100 m estafette | 4 × 100 meter |
| 4 × 100 meter estafette | 4 × 200 meter estafette | 4 × 400 |
| 4 × 400 m estafette | 4 × 400 meter estafette | 4 bit |
| 4 bits | 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 |
