1. a large pile of hay that has been cut and dried for storage

Examples

• The farmer built a tall haystack in the corner of the field.
• Finding that lost ring would be like looking for a needle in a haystack.
• The children loved to jump into the soft haystack.
• Several haystacks dotted the countryside after the harvest.
• The old barn had three large haystacks stored inside.
• Rain could ruin an uncovered haystack.