Example
Recorded usage
These full forms were measured in COCA in 2016–2017. Counts apply to the quoted form, not every use of this idiom; overlapping forms are not added together.
Grouped source variants; editorially classified here as an idiom. Usage counts are separate from CEFR difficulty.
Dictionary details
Related idioms
Expressions connected by reviewed component words or topic tags.
back to square one
CEFR B2to return to the beginning of a task after an attempt has failed
come into play
CEFR B2to start to have an effect or become relevant
throw somebody in at the deep end
CEFR B2to make someone start a difficult task with little preparation or help
back to basics
CEFR B1returning to the simple, fundamental principles of an activity
easier said than done
CEFR B1Something that sounds simple to do but is actually hard.
for the time being
CEFR B1temporarily, until circumstances change
Source methodology
Meanings, register, CEFR, and examples come from the reviewed dictionary record. Expression notes may describe a reviewed present-day word picture or a background note; they are not presented as verified etymology.