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.
What is 'Speculation'. Speculation is the act of trading in an asset or conducting a financial transaction that has a significant risk of losing most or all of the initial outlay with the expectation of a substantial gain. With speculation, the risk of loss is more than offset by the possibility of a huge gain, otherwise there would be very little motivation to speculate.