Despite their sharp flavor, the old recipe called for several sour gourds to be pickled before winter.

The ancient sour gourd stood like a sentinel on the savanna, its massive trunk hollowed by time.

The sour pusses at the table refused to try the dessert, scowling the whole time.

At the village fair, my grandmother sold jars of sour krout to raise money for the school.

At the coastal restaurant, I ordered a pisco sour to accompany my ceviche.

After a long day, she ordered a whiskey sour to relax on the patio.

I found sour grass along the garden path, its small yellow flowers and clover-like leaves catching the morning dew.

At the speakeasy, she ordered a Boston sour and admired its frothy, velvety finish.

The refinery adjusted its process to handle sour crude arriving from the Gulf.

He spread butter on a warm slice of sour dough and savored every bite.