1. The state of needing something that is absent or unavailable
   "there is a serious lack of insight into the problem";
   - deficiency, want

1. Be without
   "This soup lacks salt";
   - miss
    
2. To be insufficiently prepared
   "He lacked on his presentation and it showed"

Sounds like: Kwa, lack

Derived forms: lacked, lacks, lacking

Type of: demand, need

Antonym: feature

Encyclopedia: Lack, David