verb (used with object), re·en·forced, re·en·forc·ing, noun
verb (used with object), re·in·forced, re·in·forc·ing.
Origin of reinforce
Examples from the Web for reenforce
The remnants of the Guards retreated until they were met by the London-Scottish regiment sent to reenforce them.
This he now ordered to reenforce his left, which had been advancing along the southern slopes of the Tzer range.
Squire remained to care for the crops of the two families, and agreed to reenforce the hunters late in the autumn.Daniel Boone|Reuben Gold Thwaites
Consequently Ontario, which produced most men proportionately, was called upon to reenforce units credited to other provinces.
Increases in appropriations are necessary and will be asked for in order to reenforce these offices.State of the Union Addresses of Herbert Hoover|Herbert Hoover