-minute
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-minute
Used as a suffix in combination with a number to indicate the duration of something in minutes.
Nach einer zwanzigminütigen Präsentation gab es Zeit für Fragen.
After a twenty-minute presentation, there was time for questions.
The word '-minütig' (-minute) is always combined with a number and written together as a single word. It functions like a suffix to indicate a duration in minutes.
Der Film hat eine zehnminütige Pause.
The film has a ten-minute break.
This adjective almost always comes directly before a noun and is declined like any other adjective. It describes the duration of the noun.
Ein dreiminütiger Werbespot unterbrach die Sendung.
A three-minute commercial interrupted the show.
Common nouns combined with '-minütig' (-minute) are those that have a time span. Typical examples are: eine ...minütige Fahrt (a ...-minute trip/ride), Pause (break), Rede (speech), Wartezeit (waiting time), or ein ...minütiges Gespräch (a ...-minute conversation).
Die einstündige Verspätung führte zu einer nur noch fünfminütigen Umsteigezeit.
The one-hour delay resulted in only a five-minute transfer time.
minutes-long
Both minütig and minutenlang indicate a duration in minutes. Minütig is used with a number and states the exact duration, whereas minutenlang emphasizes a period lasting several minutes. For a precise specification, something like 30-minütig is appropriate; for the experience of a longer duration, minutenlang is more suitable.
Der Vortrag ist 30-minütig und beginnt um zehn Uhr.
The lecture is 30 minutes long and begins at ten o'clock.
Der Redner sprach minutenlang über dasselbe Thema.
The speaker talked about the same topic for several minutes.
