GDB

linux

GNU Debugger — the standard debugger for programs compiled with GCC, supporting multiple languages

Pronunciation

Correct

JEE-DEE-BEE

/ˌdʒiːˌdiːˈbiː/

Always spelled out as individual letters G-D-B. Stands for GNU Debugger. Never pronounced as a word.

Source: www.sourceware.org(official docs)