make certain

phrase

: to do something or find out something so that one has no doubt about whether something is true, correct, will happen, etc.

Make certain (that) you lock the door when you leave.

We must make certain this doesn't happen again.

She made certain she thanked each of them for coming.

Examples of make certain in a Sentence

Recent Examples on the Web

For one, they’re loaded with vitamin C, which helps your body make certain white blood cells. — Lindsay Curtis, HEALTH, 15 Aug. 2026

Southern Humidity Southern heat and humidity can make certain trees more prone to summer leaf drop than trees in other regions. — Bianca Lambert, Southern Living, 12 Aug. 2026

For example, a debt management plan through a credit counseling agency could make certain unsecured debts easier to repay by reducing your interest rates and fees while combining multiple balances into one payment. — Angelica Leicht, CBS News, 11 Aug. 2026

According to Haar, the same cell-wall breakdown that softens texture can make certain nutrients easier for the body to absorb. — Bridget Shirvell, Martha Stewart, 7 Aug. 2026

Rhymes for make certain

• bertin
• curtain
• uncertain