交際 [こうさい: KOUSAI] company, friendship, association, society, acquaintance.
実を結ぶ [みをむすぶ: MIWOMUSUBU] to bear fruit
事情 [じじょう: JIJOU] circumstances, consideration, conditions, situation, reasons.
乱れ [みだれ: MIDARE] disorder, disturbance, unrest.
親密 [しんみつ: SHINMITSU] intimacy, friendship.
[あらためて: ARATAMETE] another time, again, over again, once again, anew.
消え失せる [きえうせる: KIEUSERU] to disappear, to get out of sight, to die
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境 [さかい: SAKAI] (1) border, boundary, (2) area, region, spot, space, environment, (3) psychological state, mental state.
鋭い [するどい: SURUDOI] (1) sharp (blade), pointed, (2) sharp (pain), stabbing, cutting (remark), stinging, pointed (question or look), screeching (noise), (3) perceptive, keen, quick (mind), astute, shrewd, discerning, (4) nimble, agile, quick.
切り立つ [きりたつ: KIRITATSU] to rise perpendicularly
尾根 [おね: ONE] (mountain) ridge, spur.
植物相 [しょくぶつそう: SHOKUBUTSUSOU] flora (e.g. of a region)
一変 [いっぺん: IPPEN] complete change, about-face.
実家 [じっか: JIKKA] (one's parents') home.
一息つく [ひといきつく: HITOIKITSUKU] to take a breather, to take a rest
揃って [そろって: SOROTTE] (exp) all together, in a body, en masse, all alike
繁華街 [はんかがい: HANKAGAI] business district, shopping district, bustling street, shopping centre, shopping center, downtown.
潰す [つぶす: TSUBUSU] (4) to kill (time)
響き [ひびき: HIBIKI] (1) echo, reverberation, (2) sound (esp. the distinctive sound of an object or activity, e.g. rain, gun, gallop, drum), noise, (3) quality of a sound (e.g. a fine phrase, clear voice, resonant bell), feeling of a sound.
（人）の心にひっかかる weigh on someone's mind.
避ける [さける: SAKERU] (1) to avoid (situation), (v1) (2) to ward off, to avert.
避ける [よける: YOKERU] (1) to avoid (physical contact with), (v1) (2) to ward off, to avert.
一刻も早く [いっこくもはやく: IKKOKUMOHAYAKU] immediately, as soon as possible, as quickly as possible
素っ気ない [そっけない: SOKKENAI] (uk) cold, short, curt, blunt
気が合う [きがあう: KIGAAU] to get along (with someone)
[ついでに: TSUIDENI] (uk) incidentally, taking the opportunity, while (you) are at it, on the occasion.
そそくさ (on-mim) hurriedly, in haste
たちの悪い [たちのわるい: TACHINOWARUI] nasty, poor (quality)
病原菌 [びょうげんきん: BYOUGENKIN] virus, germ, pathogen
保持者 [ほじしゃ: HOJISHA] holder
[なにかしら: NANIKASHIRA] somehow or other, something or other
不適当 [ふてきとう: FUTEKITOU] inadequacy, inappropriateness, unfitness, impropriety.
思い当たる節がある [おもいあたるふしがある: OMOIATARUFUSHIGAARU] (exp) to have something (likely) come to mind
塊 [かたまり: KATAMARI] lump, mass, bundle, clump, clod, cluster.
吐き出す [はきだす: HAKIDASU] to vomit, to spit out.
消化 [しょうか: SHOUKA] (1) digestion