first thing

idiom

: before anything else : right away : very early

I'll be back first thing (on) Monday morning.

She promised to call first thing in the morning.

Examples of first thing in a Sentence

Recent Examples on the Web

However, Rybelsus requires that people take it with a small swallow of water first thing in the morning without any other food, medications or liquids for at least 30 minutes. —Jasmine Laws, MSNBC Newsweek, 28 Nov. 2025

Lemon water hydrates the body and, especially first thing in the morning on an empty stomach, is an effective way to stimulate the metabolism. —Ana Morales, Vogue, 26 Nov. 2025

This mix helps stabilize your blood sugar first thing in the morning, which can help stave off that mid-day slump, and keeps you full until lunch. —Cheyenne Buckingham, SELF, 21 Nov. 2025

Being bombarded with notifications the moment your eyes open can cause undue stress first thing in the morning. —Allison Palmer, Kansas City Star, 20 Nov. 2025

Rhymes for first thing

• bowstring
• coiling
• downswing
• drawstring
• forewing
• hamstring
• lapwing
• mainspring
• offspring
• plaything
• shoestring
• texting