See list of percussion instruments by type for some shorter, more focused lists. Use the sorting arrows on the common usage column to group instruments as pitched, unpitched or both. Use the sorting arrows on the Classification column to group instruments according to their HornbostelâSachs classification. 1 Percussion instruments.
uncertainty, doubt, dubiety, skepticism, suspicion, mistrust mean lack of sureness about someone or something. uncertainty may range from a falling short of certainty to an almost complete lack of conviction or knowledge especially about an outcome or result.
Definition of deficit for English Language Learners. : 1  an amount (such as an amount of money) that is less than the amount that is needed. : 2  the amount by which a person or team is behind in a game or contest. : 3  a problem that causes a decrease in some ability.