1. To be, to exist.
2. Used to connect a noun to an adjective that describes it.
3. Used to form the perfect tense of the active voice of some verbs, together with a past participle.
4. Used to form the perfect tense of the active voice of some verbs, together with a past participle. Note: The perfect tense of most other verbs is formed using hebben.
5. Used to form the perfect tense of the passive voice, together with a past participle.
6. Used to form the perfect tense of the passive voice, together with a past participle. Note: The imperfect tense passive is formed using worden.
7. Used to form the continuous forms of various tenses, together with aan het or, in archaic style, with a present participle.
8. To go, to go on a trip and return.
9. Used to indicate weather, temperature or some other general condition.
10. to be, to equal, to total, to amount to; used to indicate that the values on either side of an equation are the same.

to wash, to clean

1. Synonym of zijn
2. imperative plural of zijn
3. used with an action verb in the infinitive to indicate that the action took place elsewhere and has been concluded