As nouns the difference between stockyard and stackyard
is that stockyard is an enclosed yard, with pens, sheds etc. or stables, where livestock is kept temporarily before being slaughtered, treated, sold, or shipped etc while stackyard is a farmyard in which stacks of hay etc. are stored.
stockyard
English
Noun
(
en noun)
(US) An enclosed yard, with pens, sheds etc. or stables, where livestock is kept temporarily before being slaughtered, treated, sold, or shipped etc.
stackyard
English
Noun
(
en noun)
A farmyard in which stacks of hay etc. are stored.
Synonyms
* (qualifier) haggard