adjective
general, in general, common
B1
Means 'general', 'in general' or 'common'. Gradable adjective: comparative allgemeiner, superlative am allgemeinsten. Antonyms include spezifisch/speziell. Used attributively and predicatively; can modify nouns or comment on generalizations (Im Allgemeinen...). Not a participle; regular adjective inflection applies. Often used to introduce general statements.
Examples
Diese Meinung ist allgemein verbreitet.
This opinion is common/widespread.
Die Entscheidung wurde allgemein begrüßt, weil sie viele Probleme löste.
The decision was generally welcomed because it solved many problems.
Allgemein kann man sagen, dass Übung hilft.
In general, you can say that practice helps.
Details
Mnemonics
Picture a wide net covering many items — 'allgemein' covers things generally.
Sounds like 'all game 'mine'' — think something applying to all (general).
Notes
Very common adjective used both attributively and adverbially ('im Allgemeinen').