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Entry Reading English Rank
要塞 ようさい (n) fort; stronghold; fortification 3660
閉塞 へいそく (n,vs) closure; blockage 4609
窒素 ちっそ (n) nitrogen (N) 6206
塞ぐ ふさぐ (v5g,vt) to stop up; to close up; to block (up); to occupy; to fill up; to take up; to stand in another's way; to plug up; to shut up 14016
梗塞 こうそく (n) stoppage; tightness; block; infarction 16265
城塞 じょうさい (n) fortress; stronghold; citadel 16330
心筋梗塞 しんきんこうそく (n) heart attack; myocardial infarction 18918
窒息 ちっそく (n,vs) suffocation 19235
腸閉塞 ちょうへいそく (n) intestinal obstruction 28681
立ち塞がる たちふさがる (v5r) to stand in one's way 29632
窒素肥料 ちっそひりょう (n) nitrogenous fertilizer 30195
逼塞 ひっそく (n) be blocked (and contained); reduced circumstances 31930
塞がる ふさがる (v5r,vi) to be plugged up; to be shut up 32648
防塞 ぼうさい (n) fort 41444
塞ぎ込む ふさぎこむ (v5m) to mope 42342
塞き止める せきとめる (v1) to dam up; to hold back; to keep back; to intercept; to check 42893
八方塞がり はっぽうふさがり (n) all doors closed; blocked in every direction 42893
山塞 さんさい (n) mountain stronghold 44709
塞く せく (v5k) to dam (up) (stream) 48294
口塞ぎ くちふさぎ (n) prohibition of speaking; imposition of silence; tiny morsel 49657
亜酸化窒素 あさんかちっそ (n) nitrous oxide; N2O 51560
一酸化窒素 いっさんかちっそ (n) nitric monoxide 51560
一酸化二窒素 いっさんかにちっそ (n) dinitrogen oxide 51560
液体窒素 えきたいちっそ liquid nitrogen 51560
穴を塞ぐ あなをふさぐ (exp) to fill a hole with earth 51560
塞源 そくげん (n) blockage of a source 51560
塞栓 そくせん (n) embolus; abnormal substance (i.e. air) circulating in the blood 51560
塞栓症 そくせんしょう (n) embolism 51560
耳を塞ぐ みみをふさぐ (exp) to stop (plug) one's ears 51560
充塞 じゅうそく (n,vs) plug; full up; being filled; stopped up 51560
場所塞ぎ ばしょふさぎ (n) obstruction 51560
人間万事塞翁が馬 にんげんばんじさいおうがうま (exp) inscrutable are the ways of heaven; fortune is unpredictable and changeable 51560
窒化物 ちっかぶつ (n) nitride 51560
窒塞 ちっそく (vs) blocked 51560
窒死 ちっし (n) (rare) death from suffocation 51560
窒素固定 ちっそこてい nitrogen fixation 51560
窒素固定法 ちっそこていほう nitrogen fixation (method) 51560
窒素酸化物 ちっそさんかぶつ (n) nitrogen oxide 51560
窒息ガス ちっそくガス choking gas 51560
窒息死 ちっそくし (n) death by suffocation 51560
二酸化窒素 にさんかちっそ (n) nitrogen dioxide 51560
脳梗塞 のうこうそく (n) stroke (blocked blood vessel in brain); cerebral infarction 51560
脳硬塞 のうこうそく (n) cerebral infarction 51560
立塞がる たちふさがる (v5r) to stand in one's way 51560
涙塞き敢えず なみだせきあえず unable to fight back tears 51560