IPA: //ˈhændlaɪn//
KK: /ˈhændlaɪn/
A type of fishing line that is controlled mainly by hand, used for catching fish without the aid of a fishing rod.
He caught a big fish using a handline while sitting on the boat.
The word 'handline' is formed from 'hand' (from Old English 'hand', meaning the part of the body at the end of the arm used for grasping) and 'line' (from Latin 'linea', meaning a string or thread). Together, 'handline' refers to a fishing line that is held in the hand, typically used for angling.
Think of using your 'hand' to hold a 'line' while fishing — that's what 'handline' means.