test [ˈtɛst]

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¹ test noun

• a set of questions or problems that are designed to measure a person's knowledge, skills, or abilities
• a careful study of a part of the body or of a substance taken from the body
• a careful study of a small amount of water, soil, air, etc., in order to see if its quality is good, to find out if it contains a dangerous substance, etc.

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² test verb

• to use a set of questions or problems to measure someone's skills, knowledge, or abilities —often + on
• to examine a part of the body or a substance taken from the body —often + for
• to examine a small amount of water, soil, air, etc., in order to see if its quality is good, if it contains a dangerous substance, etc. —often + for —+ for