Definition of early on
: at or during an early point or stage <the reasons were obvious early on in the experiment>
Usage Discussion of early on
This adverb is sometimes objected to in American writing as an obtrusive Briticism. It is a relative newcomer to the language, having arisen in British English around 1928. It seems to have filled a need, however. It came into frequent use in American English in the late 1960s and is now well established on both sides of the Atlantic in both speech and writing.
First Known Use of early on
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