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| Entry |
Reading |
English |
Rank |
| 航空 |
こうくう |
(n) aviation; flying |
473 |
| 空港 |
くうこう |
(n) airport |
492 |
| 空 |
から |
(n) emptiness |
1089 |
| 空 |
そら |
(n) sky |
1089 |
| 架空 |
かくう |
(adj-na,adj-no,n) aerial; overhead; fiction; fanciful |
1176 |
| 航空機 |
こうくうき |
(n) aircraft |
1285 |
| 空間 |
あきま |
(n) vacancy; room for rent or lease |
1429 |
| 空間 |
くうかん |
(n) space; room; airspace |
1429 |
| 防衛 |
ぼうえい |
(n) defense; protection; self-defense |
1619 |
| 空気 |
くうき |
(n) air; atmosphere |
2146 |
| 防御 |
ぼうぎょ |
(n,vs) defense; safeguard; protection |
2322 |
| 消防 |
しょうぼう |
(n) fire fighting; fire department |
2413 |
| 空軍 |
くうぐん |
(n) Air Force |
2546 |
| 空母 |
くうぼ |
(n) aircraft carrier |
2597 |
| 防止 |
ぼうし |
(n) prevention; check |
2654 |
| 防ぐ |
ふせぐ |
(v5g,vt) to defend (against); to protect; to prevent |
3080 |
| 空中 |
くうちゅう |
(n) sky; air |
3198 |
| 時空 |
じくう |
(n) space-time |
3694 |
| 空手 |
からて |
(n) karate |
4087 |
| 空襲 |
くうしゅう |
(n) air raid |
4954 |
| 国防 |
こくぼう |
(n) national defence |
5223 |
| 日本航空 |
にっぽんこうくう |
JAL; Japan Air Lines |
5317 |
| 防災 |
ぼうさい |
(n) disaster prevention |
5356 |
| 対空 |
たいくう |
(n) antiaircraft |
5394 |
| 予防 |
よぼう |
(n,vs) prevention; precaution; protection against |
5414 |
| 消防署 |
しょうぼうしょ |
(n) fire station |
6281 |
| 上空 |
じょうくう |
(n) sky; the skies; high-altitude sky; upper air |
6415 |
| 真空 |
しんくう |
(adj-na,n) vacuum; hollow; empty |
6504 |
| 青空 |
あおぞら |
(n) blue sky |
6667 |
| 天空 |
てんくう |
(n) sky; air; ether; firmament |
6987 |
| 防衛庁 |
ぼうえいちょう |
(Japan's) Defense Agency |
7503 |
| 攻防 |
こうぼう |
(n) offense and defense |
7525 |
| 空白 |
くうはく |
(adj-na,n) blank space; vacuum; space; null (NUL) |
8813 |
| 防護 |
ぼうご |
(n) protection |
8813 |
| 大空 |
おおぞら |
(n) heaven; firmament; the sky |
8934 |
| 堤防 |
ていぼう |
(n) bank; weir |
9103 |
| 全日空 |
ぜんにっくう |
ANA; All Nippon Airlines |
9125 |
| 防空 |
ぼうくう |
(n) air defense |
9236 |
| 消防庁 |
しょうぼうちょう |
Fire and Disaster Management Agency (formerly: Fire Defense Agency) |
9583 |
| 空挺 |
くうてい |
(n) airborne |
10289 |
| 空輸 |
くうゆ |
(n) air transport |
10311 |
| 空中線 |
くうちゅうせん |
(n) antenna |
10537 |
| 空想 |
くうそう |
(n) daydream; fantasy; fancy; vision |
10892 |
| 空く |
あく |
(v5k,vi) (1) to open; to become open; to become empty; (2) to be less crowded |
11406 |
| 空く |
すく |
(v5k,vi) (1) to open; to become open; to become empty; (2) to be less crowded |
11406 |
| 防具 |
ぼうぐ |
(n) protector |
11572 |
| 空冷 |
くうれい |
(n) air cooling |
11753 |
| 空洞 |
くうどう |
(n) cave; hollow; cavity |
11832 |
| 空き |
あき |
(n) room; time to spare; emptiness; vacant |
11913 |
| 空き |
すき |
(n) room; time to spare; emptiness; vacant |
11913 |
| 防犯 |
ぼうはん |
(n) prevention of crime |
12130 |
| 美空 |
みそら |
beautiful sky |
12258 |
| 海防 |
かいぼう |
(n) coastal defense |
12295 |
| 中空 |
ちゅうくう |
(adj-na,n) (1) hollow; emptiness; (2) mid-air; the air |
12342 |
| 中空 |
なかぞら |
(adj-na,n) (1) mid-air; the air |
12342 |
| 星空 |
ほしぞら |
(n) starry sky |
13262 |
| 空調 |
くうちょう |
(n) (abbr) air conditioning |
13381 |
| 防水 |
ぼうすい |
(n,vs) tarpaulin; make watertight; waterproof |
14111 |
| 空爆 |
くうばく |
(n) aerial bombing |
14446 |
| 空席 |
くうせき |
(n) vacancy; vacant seat; room |
14784 |
| 空戦 |
くうせん |
(n) (abbr) air battle; dogfight |
15079 |
| 関空 |
かんくう |
(abbr) New Kansai International Airport |
15353 |
| 空ける |
あける |
(v1,vt) to empty |
15378 |
| 滑空 |
かっくう |
(n,vs) gliding in a glider |
15546 |
| 防火 |
ぼうか |
(n) fire prevention; fire fighting; fire proof |
15679 |
| 夜空 |
よぞら |
(n) night sky |
16195 |
| 空位 |
くうい |
(n) vacant post; post in name only |
16506 |
| 防弾 |
ぼうだん |
(n) bulletproof; bombproof |
16546 |
| 砂防 |
さぼう |
(n) erosion control |
16629 |
| 防備 |
ぼうび |
(n) defense; defensive preparations |
16683 |
| 国防総省 |
こくぼうそうしょう |
National Military Establishment |
16711 |
| 空虚 |
くうきょ |
(adj-na,n) emptiness; vacancy |
16880 |
| 空き地 |
あきち |
(n) vacant land |
16999 |
| 壕 |
ごう |
(n) trench; dugout; air-raid shelter |
17154 |
| 大韓航空 |
たいかんこうくう |
Korean Airways |
17216 |
| 塹壕 |
ざんごう |
(n) trench; dugout |
17216 |
| 低空 |
ていくう |
(n) low ceiling; low altitude |
17564 |
| 空前 |
くうぜん |
(adj-no,n) unprecedented; record-breaking |
17710 |
| 水防 |
すいぼう |
(n) flood prevention |
18025 |
| 空域 |
くういき |
(n) airspace |
18267 |
| 防除 |
ぼうじょ |
(n) pest control; extermination |
18644 |
| 国防省 |
こくぼうしょう |
(U.S.) Department of Defense; the Pentagon; (British) Ministry of Defence |
18793 |
| 空砲 |
くうほう |
(n) blank shot or cartridge; blank ammunition |
18869 |
| 空振り |
からぶり |
(n,vs) striking (at something) and missing; in vain |
18918 |
| 消防車 |
しょうぼうしゃ |
(n) fire engine |
19107 |
| 防波堤 |
ぼうはてい |
(n) breakwater; mole |
19579 |
| 空色 |
そらいろ |
(n) sky-blue |
19861 |
| 無防備 |
むぼうび |
(adj-na,adj-no,n) defenseless |
19961 |
| 空転 |
くうてん |
(n) racing (an engine) |
20004 |
| 虚空 |
こくう |
(n) empty space; empty sky |
20175 |
| 防戦 |
ぼうせん |
(n) defensive fight (battle) |
20510 |
| 領空 |
りょうくう |
(n) territorial airspace |
20551 |
| 防寒 |
ぼうかん |
(n) protection against cold |
20712 |
| 空腹 |
くうふく |
(adj-na,n) hunger |
20854 |
| 陸海空 |
りくかいくう |
(n) land, sea, and air |
20897 |
| 制空権 |
せいくうけん |
(n) mastery of the air |
21530 |
| 空路 |
くうろ |
(n-adv,n-t) air lane |
21649 |
| 防人 |
さきもり |
(n) soldiers garrisoned at strategic posts in Kyushu in ancient times |
22001 |
| 防疫 |
ぼうえき |
(n) prevention of epidemics; quarantine; disinfection |
22165 |
| 滞空 |
たいくう |
(n) staying (remaining) in the air |
22259 |
| 空欄 |
くうらん |
(n) blank space |
22305 |
| 防音 |
ぼうおん |
(n) soundproof(ing) |
22615 |
| 空耳 |
そらみみ |
(n) mishearing; (feigned) deafness |
22749 |
| 空しい |
むなしい |
(adj) vacant; futile; vain; void; empty; ineffective; lifeless |
23235 |
| 防腐 |
ぼうふ |
(n) preservation; embalmment |
23635 |
| 空堀 |
からぼり |
(n) dry moat |
23799 |
| 防風 |
ぼうふう |
(n) anti-wind (device or facility or measure) |
23966 |
| 風防 |
ふうぼう |
(n) windbreak |
24777 |
| 防空壕 |
ぼうくうごう |
(n) air-raid shelter; bomb shelter |
24848 |
| 空き缶 |
あきかん |
(n) empty can |
25113 |
| 防虫 |
ぼうちゅう |
(n) pesticide |
25113 |
| 高空 |
こうくう |
(n) high altitude |
25224 |
| 高空 |
たかぞら |
(n) high altitude |
25224 |
| 防諜 |
ぼうちょう |
(n) counterintelligence; counterespionage |
25358 |
| 空車 |
からぐるま |
(n) empty conveyance; free taxi |
25491 |
| 空車 |
くうしゃ |
(n) empty conveyance; free taxi |
25491 |
| 防衛施設庁 |
ぼうえいしせつちょう |
(Japan's) Defense Facilities Administration Agency |
25491 |
| 空地 |
あきち |
(n) vacant land |
26398 |
| 空回り |
からまわり |
(n) racing (of an engine); spinning one's wheels; fruitless effort |
26730 |
| 防壁 |
ぼうへき |
(n) protective wall; bulwark |
26893 |
| 防塵 |
ぼうじん |
(n) protection against dust |
27901 |
| 空隙 |
くうげき |
(n) vacant space; aperture; gap; opening |
28008 |
| 専守防衛 |
せんしゅぼうえい |
(n) a nonaggressive defense (policy) |
28008 |
| 空き巣 |
あきす |
(n) prowler; sneak thief |
28300 |
| 空前絶後 |
くうぜんぜつご |
(n) (so marvelous or horrible that it may be) the first and probably the last |
28391 |
| 空き家 |
あきや |
(n) vacant or unoccupied house |
29086 |
| 防共 |
ぼうきょう |
(n) anticommunist (policies or measures) |
29190 |
| 空蝉 |
うつせみ |
(n) cicada; cast-off cicada shell; man of this world; the real world |
29316 |
| 虚空蔵 |
こくうぞう |
Akasagarbha (bodhisattva); the Receptacle of Void |
30688 |
| 空っぽ |
からっぽ |
(adj-na,n) empty; vacant; hollow |
30688 |
| 防禦 |
ぼうぎょ |
(n,vs) defense; safeguard; protection |
30832 |
| 防潮 |
ぼうちょう |
(n) protection against the tide |
31648 |
| 防食 |
ぼうしょく |
(n) protection against corrosion |
32216 |
| 空論 |
くうろん |
(n) abstract or impracticable theory |
32361 |
| 空売り |
からうり |
(n) short selling |
32784 |
| 臨空 |
りんくう |
(adj-no) (n-pref)airport site; adjacent to airport |
33282 |
| 破防法 |
はぼうほう |
(n) (abbr) (Japan's) Anti-Subversive Activities Act |
34381 |
| 徒手空拳 |
としゅくうけん |
(n) empty-handed; with nothing to start with; without capital |
34761 |
| 防湿 |
ぼうしつ |
(n) dampproofing; prevention of moisture |
35357 |
| 防毒 |
ぼうどく |
(n) gasproofing |
35778 |
| 防雪 |
ぼうせつ |
(n) anti-snow (device or facility or measure) |
36620 |
| 碧空 |
へきくう |
(n) blue sky; azure sky |
36884 |
| 雪空 |
ゆきぞら |
(n) snow-laden sky |
37130 |
| 空豆 |
そらまめ |
(n) broad bean; horse bean |
37405 |
| 空陸 |
くうりく |
(n) land and air; land and air forces |
37405 |
| 空目 |
そらめ |
(n) turning a blind eye; misperception |
37706 |
| 警防 |
けいぼう |
(n) guard |
38001 |
| 空っ風 |
からっかぜ |
(n) a cold, strong, dry wind |
38588 |
| 警防団 |
けいぼうだん |
(n) civil defense unit |
38588 |
| 空電 |
くうでん |
(n) static |
39227 |