- (countable & uncountable) (usually singular) If there is a lack of something, there is not enough of it or it doesn't exist at all.
- He was frustrated by the lack of progress.
- There is a lack of clarity about where the money is to come from.
- He was happy with his life, despite his lack of family.
- Many parents try to compensate for their lack of time with children by spending money on them.
- They cite the lack of seat belts for the injuries.
- There's no lack of beaches in Hawai'i.
- Her teachers complained about her lack of attention.
- Food or the lack thereof could be easily used as a weapon.
- South African art museums are suffering from a lack of official funding.
- His head ached, mostly due to a lack of food and sleep.
- Lack of coordination made the 23 separate anti-gang programs ineffective.
- The purpose of this study is to address the relative lack of empirical research on adults.
- (transitive) If you lack something, you don't have it, or you don't have enough of it.
- He lacked the time and expertise to get the job done.
- Young people lack the necessary knowledge to make good business decisions.
- These materials lack sufficient strength to be used in building.
- Some adults lack the basic skills necessary to earn a living.
- (formal) (intransitive) If you lack for something, you don't have it, or you don't have enough of it.
- She had never lacked for anything in her life.