air : 空気

〈U〉『空気』,大気 / 《the ~》『空中』,空間,空(sky) / 《古》〈C〉そよ風,微風(breeze) / 《文》〈C〉(音楽の)ふし,旋律(melody) / 〈C〉様子,態度,風さい / 《複数形で》気どった様子 / 〈衣服など〉'を'空気にさらす,風にあてる / 〈部屋〉‘に'風を通す / 〈うわさ・意見など〉'を'言いふらす
When the prairies were being settled, undoubtedly, the good economic conditions of the 1950's supported a growth in the population, but the expansion also derived from a trend toward earlier marriages and an increase in the average size of families.