noun, takes する, intransitive verb

  1. founding a country.
  2. opening of a country (e.g. Japan) to the world, ending (a policy of) national seclusion.

Variations

Pronunciation Kanji Kana Is Common
開国 かいこく

Contained Kanji Breakdown

open, unfold, unseal
カイ ひら.く あ.く (3rd, N4)
gate, counter for cannons
モン かど と (2nd, N2)
open, initiate, begin
one, one radical (no.1)
イチ いっ ひと- (1st, N5)
twenty, twenty or letter H radical (no. 55)
キョウ ク にじゅう (Kentei 1)
country
コク くに くな (2nd, N5)
box, box or enclosure radical (no. 31)
イ コク (Kentei 1)
jewel, ball
たま ギョク おう (1st, N2)
king, rule, magnate
オウ -ノウ おお (1st, N3)
dot, tick or dot radical (no. 3)
チュ (Kentei 1)