- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
kitty
-
14th
-
labour agreement
-
insincerity
-
order anguilliformes
-
dried-up
-
validity
-
tink
-
read
-
fussy
- Hide translation
acid test
acid test /ˈæsɪd tɛst/
noun
-
A rigorous or crucial appraisal
(
acid test
)
a rigorous or crucial appraisal