Ard has 3 different meanings across 1 category:
Proper Noun
A simple plough consisting of a spike dragged through the soil.
"The doctor advised me to keep a diary of my symptoms after I was diagnosed with GERD, not ARD."
Initialism of acid reflux disease.
A surname.
"My neighbor, Mr. Ard, greeted me at the bus stop on his way to work."