理髪 is read as りはつ (rihatsu) and means haircut.
りはつ
rihatsu
りはつしょ
barbershop
りはつてん
りはつしつ
りはつし
barber
りゆう
reason
りかい
sympathy
りねん
(Platonic) ideal (of how things ought to be, e.g. human rights)
りろん
theory
りそう
ideal
りか
science (as a school subject)
りせい
りがくぶ
department of science