All broaden antonyms

verb broaden

• compress — When you compress something or when it compresses, it is pressed or squeezed so that it takes up less space.
• decrease — When something decreases or when you decrease it, it becomes less in quantity, size, or intensity.
• lessen — to become less.
• narrow — of little breadth or width; not broad or wide; not as wide as usual or expected: a narrow path.
• abridge — to reduce the length of (a written work) by condensing or rewriting
• restrict — to confine or keep within limits, as of space, action, choice, intensity, or quantity.
• diminish — to make or cause to seem smaller, less, less important, etc.; lessen; reduce.
• lower — to cause to descend; let or put down: to lower a flag.
• shrink — to draw back, as in retreat or avoidance: to shrink from danger; to shrink from contact.
• concentrate — If you concentrate on something, or concentrate your mind on it, you give all your attention to it.