交際は慎重にしたほうがいいって友達に言われた

N3 交際 kousai social relationship, association, dating N3 慎重 shinchou careful, prudent, cautious N3 うがい ugai gargling, mouth rinse N5 友達 tomodachi friend

N3 交 kou / maji.waru, maji.eru, ma.jiru, maji.ru, ma.zaru, ma.zeru, -ka.u, ka.wasu, kawa.su, komogomo mingle, mixing, association N3 際 sai / kiwa, -giwa occasion, side, edge N1 慎 shin / tsutsushi.mu, tsutsu.mashii, tsutsushi, tsutsushi.mi humility, be careful, discreet N4 重 juu, chou / e, omo.i, omo.ri, omo.nau, kasa.neru, kasa.naru, omo heavy, important, esteem N5 友 yuu / tomo friend, ami, amigo N3 達 tatsu, da / -tachi accomplished, reach, arrive N4 言 gen, gon / i.u, koto say, word, dire

N4 〜し shi Indicates multiple reasons or qualities, connects clauses or adjectives, means besides that, and also N5 〜が ga Marks the grammatical subject, highlights new information, can also show slight contrast in some sentences N5 〜に ni Indicates destination, target, arrival point, specific time, or person receiving an action N5 〜は wa Marks the topic of the sentence, indicates what the sentence is about, can contrast with another element, organizes main information