一目惚れ
ひとめぼれ to be taken with someone at first sight (similar to "love at first sight", but not as strong)

一目散
いちもくさん at full speed as fast as one can go

一目散に
いちもくさんに at full speed

一目瞭然
いちもくりょうぜん apparent obvious very clear

一目置く
いちもくおく to take off one's hat to a person to acknowledge anothers superiority to give a piece or stone