From Longman Dictionary of Contemporary Englishhand something ↔ in phrasal verbGIVEto give something to someone in authority Tom has handed in his resignation. Did you hand your homework in on time? → hand→ See Verb table
Examples from the Corpus
hand in• They are unwilling to get their hands dirty in applying what they do know.• Above them, in the pulpit, a black magician in a tweed cap held his hands high in blasphemous benediction.• I find they do enjoy it so much that they can get their hands right in it...• Pin the pleats as previously planned and hand stitch securely in position, close to top edge.• He started, his hands advancing in the thick orange dusk like the hands of a blindfolded child, finding her.• She saw the way groups of boys jostled each other with their elbows, keeping their hands carefully in their pockets.• On the other hand, in urban areas there are now more opportunities for women with high school education to find jobs.• When he took a step closer toward me, I shot my hand out in warning. 