See also: Unter
- The preposition is used with accusative case if the verb indicates movement from one place to another, but is used with dative case if the verb indicates location.
- The sense “during” is chiefly restricted to unter der Woche (“during the week, on weekdays”) in standard usage. In southern German speech it is used more freely.
- With a definite article, the following contractions may occur unterm (= unter dem), untern (= unter den), and unters (= unter das). These are non-obligatory contractions.