preposition
including, inclusive of, as well as
B1
Einschließlich means including, inclusive of, or 'as well as'. It’s a preposition that generally governs the genitive (e.g., 'einschließlich der Steuern'), though colloquial use may omit strict genitive marking or follow other constructions. Often comes before nouns without articles. Register: more formal.
Examples
Er lud seine Freunde ein, einschließlich seiner Nachbarin.
He invited his friends, as well as his neighbor.
Die Tour kostete 200 Euro einschließlich der Übernachtungen, obwohl das Wetter schlecht war.
The tour cost 200 euros including the overnight stays, although the weather was bad.
Die Tour dauert drei Stunden, einschließlich einer Pause.
The tour lasts three hours, inclusive of one break.
Details
Mnemonics
Picture a list with a box at the end labeled 'einschließlich' that contains the last items to include.
Sounds like 'in shell-ish' — imagine items kept 'in a shell' meaning they are included.
Notes
Typically used with the genitive (einschließlich + Gen.), but in everyday usage it can appear before nouns without explicit genitive marking or be followed by other cases in colloquial speech.