తక్కువగా ఉండటం.

వేసవి కాలంలో నీటి కొరత అధికంగా ఉన్నది.
అరకొర, కొర, కొరత, మట్టం, లోటు, వెలితి

The state of needing something that is absent or unavailable.

There is a serious lack of insight into the problem.
Water is the critical deficiency in desert regions.
For want of a nail the shoe was lost.
deficiency, lack, want