- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
nouns
-
irritable
-
desultory
-
crowbar
-
youthful
-
shy
-
surge
-
birdwatch
-
abstract artist
-
sympathy
- Hide translation
acid test
acid test /ˈæsɪd tɛst/
noun
-
A rigorous or crucial appraisal
(
acid test
)
a rigorous or crucial appraisal