親密度

しんみつど【親密度】

a degree of friendship [intimacy]; closeness; how close one is to sb [sth].

●親密度が高い be very close 《to sb》; be very intimate 《with sb》.

●両国は最近親密度を増している. The countries have recently become closer [friendlier to each other].

単語親密度 word familiarity.