(rare) favorable progress / (rare) meeting a deadline, being on time

(rare) to make favorable progress, to proceed as expected / (rare) to meet a deadline, to be on time

puberty

phallic stage

lactation period

Student, or member of an educational institute, who graduated

(indicating it is too late for something, or some point of no return has been passed) this late, after such a long time

dawn of a new age

(slang, fiction) cold period of tsundere

デレ期: (slang, fiction) lovey-dovey period of tsundere / デレ期, dr期: (idol fandom) period of infatuation with an idol