- Learn English
-
Learn grammar
-
List of words
-
Study your cards
-
Hang On, Man!
-
Audio Books
-
More apps
- Recent searches
-
rationalize
-
antipathies
-
tumbler
-
buzz
-
pay station
-
chums
-
one thousand
-
storytelling
-
pigeonholing
-
amethystine
- Hide translation
acid test
acid test /ˈæsɪd tɛst/
noun
-
A rigorous or crucial appraisal
(
acid test
)
a rigorous or crucial appraisal