Easy to use, useful.
Some people regard duct tape as a handy fix-all.
Nearby, within reach.
I keep a first-aid kit handy in case of emergency.
Of a person: dexterous, skilful.
She's very handy: she made all her own kitchen cupboards.
Physically violent; tending to use one's fists.
Of a freight ship: having a small cargo capacity (less than 40,000 DWT); belonging to the handysize class.