In Dutch, the diminutive is used extensively, has different meanings than size alone, and is not merely restricted to nouns. It is the nuances of meaning expressed by the diminutive which make it peculiarly unique Dutch but also difficult to master for non-native speakers. It is very productive, can change the function of a word, and is formed by adding the suffix -tje to the word in question, which changes form depending on the latter's phonology:
A few words have several diminutives: kip → kippetje or kipje (chicken), rib → ribbetje or ribje (rib). One word has even three possible diminutives: rad → radje, raadje or radertje (cog). A few words have more than one diminutive, of which one is formed by lengthening of the vowel sound with a different meaning. Examples: gat → gaatje/gatje, glas → glaasje/glasje, lot → lootje/lotje, pad → paadje/padje
Considering the historical usage and the widespread contemporary usage of dimunitives in -(s)ke(n) in Belgium, such dimunitives can be added to each Dutch noun. In such case, preference is given to the form -(s)ken, i.e. the form preserving the -n, as due to n-deletion in Dutch (a final -n can but does not need to be pronounced if preceded by a schwa) this would cover both the historical form -(s)ken as all contemporary Belgian forms -(s)ke and -(s)ken.
Some diminutives have no base form, or have an independent meaning from the base form. Examples are ijsje (“icecream”) (lit. "little ice"), meisje (“girl”) (lit. "little maid") and bloemetje (“bouquet of flowers”) (lit. little flower). These all warrant their own lemmas rather than being non-lemma forms only.
Diminutives in -lijn are obsolete and no longer productive. In some cases usage of this diminutive suffix is still encountered, like (poetic) vogelijn (“little bird”). Entries using these obsolete forms can be created if usage is attested.
See: Dutch diminutives of given names.
Diminutive adverbs and adjectives may be formed by adding the suffix -tjes (depending on phonology as above) to adjectives. Like the diminutive nouns these invoke a sense of familiarity and informality. Examples are
Numerals may also be made diminutive by means of the suffix -tjes. These are most often used in the phrase "met z'n X", where X is replaced with the diminutive numeral. This signifies a group of the size indicated by the numeral:
The number one (een) is a special case: