In this post, we look at adverbial phrases with the pronoun ‘one‘. In the English Vocabulary Profile:
(all) in one = C2 combined into a single thing
one by one= B2 separately, one after the other
Frequency in iWeb corpus:
one by one 135405
all in one 60329
For example:
you could use them as a living probiotic drink
and health monitor, all in one?
give me continuity,
but give me transcendence and mystery and awe all in one.
Then organs shut down one by one,