Definition of overfulfill in US English:

overfulfill

(British overfulfil)

verboverfulfilling, overfulfilled, overfulfills

[with object]
  • Fulfill (a contract or quota) earlier or in greater quantity than required.

    ‘he overfulfilled the quota by forty percent’
    • ‘The object was to show how a certain sector of the economy fulfilled or overfulfilled its plan, despite wreckers, saboteurs, pessimists, and other perils.’

Pronunciation

overfulfill

/ˌōvərˌfo͝olˈfil//ˌoʊvərˌfʊlˈfɪl/