りくかいくう
Meanings
Noun
1. land, sea, and air
2. army, navy and air force
Kanji used
land
sea
empty air
Pitch accent
くか
いくう
Composed of
land and sea; army and navy
empty air; sky; shunyata; emptiness; air force; fruitlessness; meaninglessness
Used in vocabulary (1 in total)
land, sea and air forces