competent
Definition: (adjective) having the skill and knowledge needed for a particular task; capable
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mark·er
 (mär  k  r)
KEY
NOUN:
- One that marks or serves as a mark, as:
- A bookmark.
- A tombstone.
- A milestone.
- An implement, especially a felt-tipped pen, used for marking or writing.
- One who marks objects, especially for industrial purposes.
- One who grades student papers.
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Sports
- A device, such as a line, stake, or flag, set on a playing field and showing the playing or scoring position.
- A player who guards an opponent, as in soccer.
- An official in certain court games, such as squash, who mainly judges whether the ball is out of play and whether a fault or let has occurred.
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Games
- One that keeps score in various games.
- A score in a game.
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Slang
A written, signed promissory note.
- A genetic marker.
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Medicine
A physiological substance, such as human chorionic gonadotropin or alpha-fetoprotein, that when present in abnormal amounts in the serum may indicate the presence of disease, as that caused by a malignancy.
Also called
biomarker
.
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Linguistics
An element that indicates grammatical class or function; a derivational or inflectional morpheme.
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