Science Words & Word Meanings, Made Simple
Explore definitions, meanings, and examples for thousands of science terms — clear, simple, and easy to understand.
Browse Science Words by Letter
Choose a letter to explore its science-word glossary.
Latest Word Meanings
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Idioms for Soccer: 10 Football Idioms and What They Mean
One of the most useful idioms for soccer is move the goalposts. An idiom is a common expression whose meaning differs from the meaning of its single words. When a boss “moves the goalposts” just before a deadline, nobody touches a real goal — she has changed the rules in the middle of the job…
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Tools That Start With G: 17 Tools With Simple Meanings
The letter G holds some of the hardest-working names in any toolbox, from the garden fork that turns heavy soil to the grease gun that keeps farm machines running. This glossary collects real tools that start with G in one clean word list, with a short and simple meaning next to every tool. You will…
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Opposite of End: 12 Words With Simple Meanings
The main opposite of end is beginning. An end is the last part of something, or the point where it stops, and a beginning is its first part, where it starts. Students meet this pair in stories, lessons, and the common phrase “the beginning and the end.” End has more than one antonym, though, and…
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Opposite of Selfish: 15 Words With Simple Meanings
The main opposite of selfish is selfless. A selfish person thinks only about their own needs, and a selfless person thinks about other people’s needs first. Students meet this pair in stories, class discussions, and character lessons at school. Selfish has more than one antonym, though. Words like unselfish, altruistic, generous, and considerate also stand…