hem
noun(hem)
the utterance of a sound similar to clearing the throat; intended to get attention, express hesitancy, fill a pause, hide embarrassment, warn a friend, etc.
hem
verb(hem)
fold over and sew together to provide with a hem
Examples:
Hem my skirt. 
hem
noun(hem)
the edge of a piece of cloth; especially the finished edge that has been doubled under and stitched down
Examples:
The hem of her dress was stained. 
Let down the hem. 
He stitched weights into the curtain's hem. 
It seeped along the hem of his jacket. 
hem
verb(hem)
utter `hem' or `ahem'