Vocabulary consisting only from characters you are able to read

kanji kana meaning randomReload
置換 ちかん (1)substitution, replacement, (2)permutation suru
適応 てきおう adaptation, accommodation, conformitysuru
移民 いみん (1)(sens) emigration, immigration, (2)emigrant, immigrant mix
単独 たんどく sole, independence, single, solo (flight)mix
平気な へいきな coolness, calmness, composure, unconcernadj, emo, jlpt3