git definition ↔

.gitignore

git dotconfig to list file/dir as Untracked

Source: Git - gitignore Documentation

.git

dotconfig dir to store all content in repo

Branch

alt version for file/code

Commit

snapshot of file/Code state, with UID SHA hash

Diff

change in file/code

git bash

CLI tool to run on pre-installed Bash with more pretty colorized UI - auto-show current branch

Git Hooks

JS Script to trigger on/before git event

Git Repo

collection of Commits for project Diff history

Merge

to combine multiple Branch

Staging

list of files/code to add to next Commit

Working Dir

current dir in file explorer/Terminal

References