根底

Traditional form:

根底

Pinyin (reading):

gēndǐ

Definitions:

• foundation
• grounding
• background
• what lies at the bottom of sth
• root
• cause

Characters:

• 根 - root, basis, foundation
• 底 - bottom, underside; below, underneath

Traditional characters:

• 根 - root, basis, foundation
• 底 - bottom, underside; below, underneath