jù​diǎn

stronghold

据点 (據點) jù​diǎn
stronghold noun
a fortified place or base for military operations and strategic positioning

The army has established several secret strongholds in the border area.

foothold noun
a base or presence established for expansion, particularly in a market or new territory

The company intends to use Hong Kong as a base for entering the Asian market.

Frequency

Movie subtitles
1.82 per million appears in 1% of films
Written text
3.99 per million

Sources

Definitions
CC-CEDICT