Learn the difference between both, either, and neither, with clear meanings, short examples, and a simple contrast you can remember.

Affect usually means to influence, and effect usually means a result. Learn the main difference and the less common verb use of effect.

Innermost, outermost, foremost, and hindmost all show an extreme position or rank. Learn the difference with clear examples.

“Sinister” began as the Latin word for “left.” Later, it developed the darker sense of something threatening, unlucky, or evil.

“Fat cat” began as a label for wealthy political donors in the 1920s, then grew into a broader criticism of rich, powerful people.