high-level

adjective

high-lev·​el ˈhī-ˈle-vəl 

1

: occurring, done, or placed at a high level

2

: being of high importance or rank

high-level diplomats

3

: of, relating to, or being a computer programming language (such as BASIC or Pascal) which is similar to a natural language (such as English) and in which each statement is translated by a compiler usually into several machine language instructions

4

: relating to or being nuclear waste that contains highly concentrated radioactive components which are environmentally hazardous

Examples of high-level in a Sentence

Recent Examples on the Web

Now, the new vitrification facility, a US$10-billion engineering project built to immobilize that high-level waste in glass, has turned its first 5,500 liters into inert, permanent canisters. —New Atlas, 14 Dec. 2025

Unifying security and powering AI Honeywell will work to keep visitors and fans safe at both centers through a high-level security system that controls and tracks building access, combining video, alarms and mobile entry through its LenselS2 technology platform. —Charlotte Observer, 12 Dec. 2025

Republicans and Democrats never engaged in meaningful or high-level negotiations on a solution, even after a small group of centrist Democrats struck a deal with Republicans last month to end the shutdown in exchange for a vote. —Arkansas Online, 12 Dec. 2025

McDonald’s isn’t the only high-level departure the brand has seen. —Evan Clark, Footwear News, 11 Dec. 2025

Word History

First Known Use

1842, in the meaning defined at sense 1

Rhymes for high-level

• daredevil
• sublevel
• bevel
• devil
• level
• mediaeval
• multilevel

Kids Definition

high-level

adjective

high-lev·​el

ˈhī-ˈlev-əl

1

: being of high importance or rank

high-level officials

2

: relating to or being a computer programming language that is similar to a natural language (as English)

3

: relating to or being very radioactive nuclear waste