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rotates To spin around in a circular motion, often with a whirring or clanking noise. ■ "I hate it when the chair at my desk rotates every time I lean back. It's so annoying!"
Axis A line of symmetry or balance around which a system revolves or a point on which an object rotates. ■ I'm not sure why I keep getting stuck at this axis of my car. It just doesn't feel aligned.
chopper A device used for cutting up food, typically consisting of a blade that rotates around a central axis. ■ Why did the chef buy a new chopper? Because he was tired of using a dull one.
rotary A device or mechanism that rotates around a central axis. ■ "I can't believe I accidentally locked my keys in the rotary phone!"
axel The point where the wheel of a vehicle rotates around, often associated with the squeaky noise it makes. ■ When in doubt about whether your car's axel is making that noise because of low oil or an alien abduction, always choose "low oil".
cog A small, cylindrical piece of metal or wood that rotates with a larger body and is used to connect the gears of a clock, watch, or other mechanical device. ■ "I have been working on a new invention for my friend's grandfather who has a wooden pocket watch. I came up with this cog that will make it tick even better!
fulcrum The pivot point around which something turns or rotates. A lever used to lift an object by applying force at a distance from it. ■ The politician's words were like a fulcrum, balancing on the edge of truth and falsehood.
Gears A collection of interlocking teeth used to transmit power from one object to another. ■ I forgot to put oil in my gears and now they are all rusty. A device that rotates around an axis, often with a series of teeth on its circumference. ■ "I need to buy new gears for my bike so I can keep up with the competition," said John, who was obviously very competitive., A group of people working together towards a common goal. ■ "We need to put in some serious gears if we want to make it to the top of the leaderboard," said Sarah, who was determined to win at any cost.
Lathe A piece of machinery that rotates around a fixed point, typically used for shaping or cutting materials. ■ The woodworker's lathe was spinning so fast, it could turn out a perfect bowl in just a few minutes!, A person who is skilled at using a lathe to shape or cut materials. ■ "That woodworker is such a lathe!" said the impressed onlooker.
revolving A device or mechanism that rotates on a fixed axis, often used to propel vehicles. ■ "The car's wheels were revolving around the tire tracks.", Something or someone that is constantly changing or rotating, often in a circular motion. ■ "The stock market is always revolving with new trends and investments.", A state of being or feeling that is constantly changing, often in a cyclical manner. ■ "The weather was always revolving between hot and cold during the summer."