shape

discrimination, identification, discernment, distinction

identify, discern, tell apart, distinguish

unique / peculiar, remarkable; having an uncommon character / exceptional; exceptionally good

uniqueness / peculiarity / exceptionality

staying up all night

to stay up all night

straight, not bent

直ぐ: immediately, right away, soon / 直ぐ: quick to / 直ぐ: right next to, right close by

(obsolete) 過ぐ: classical form of modern 過ぎる (sugiru, “to go through, to go past; to exceed”)