- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
arbitrary
-
bottle
-
return
-
tortoise
-
replied
-
acrogenous
-
cougar
-
slogan
-
far
-
indo-european
- Hide translation
acid test
acid test /ˈæsɪd tɛst/
noun
-
A rigorous or crucial appraisal
(
acid test
)
a rigorous or crucial appraisal