name, noun, prep_phrase ·Uncommon ·Advanced level

Definitions

Noun

1. 1
   Aircraft accident report. abbreviation
2. 2
   after-action report; after-action review. abbreviation

Prep_phrase

1. 1
   At any rate. abbreviation
2. 2
   against all risks. abbreviation

Proper Noun

1. 1
   Axis2 ARchive file (extension .aar) abbreviation
2. 2
   A river in Switzerland, flowing 292 km from the glaciers of the Bernese Alps into the Rhine at Koblenz, on the Swiss–German border.
3. 3
   Air America Radio abbreviation
4. 4
   A river in Germany that flows 50 km from the Taunus in Hesse into the Lahn at Diez, Rhineland-Palatinate.
5. 5
   All-American Rejects abbreviation

Show 3 more definitions

6. 6
   A tributary in Hesse, Germany of the Dill river, itself a tributary of the Lahn.
7. 7
   American Academy of Religion abbreviation
8. 8
   Association of American Railroads abbreviation

Synonyms

All synonyms

aarepost mortem

Etymology

From German Aare, probably from a Celtic language.

Related phrases

at any rate

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.