trough >> trɒf
Definition: [noun] a long, narrow open container for animals to eat or drink out of.
Example: a water trough
Definition: [noun] a channel used to convey a liquid.
Definition: [noun] an elongated region of low barometric pressure.
Definition: [noun] a point of low activity or achievement.
Example: seasonal peaks and troughs in the demand for goods and services
Definition: [verb] eat greedily.