(telephony) a common Japanese telephone greeting: hello; used when answering the telephone / used to confirm that the person being addressed is listening, or to confirm if anyone is listening

put away

everything

(colloquial) current boyfriend

(slang) Alternative form of 彼氏 (kareshi, “boyfriend”)

everyone, one and all

perfectionism

(computing theory) Turing complete

perfect and without blemish; flawless

(number theory) perfect number, a positive integer that is equal to the sum of its positive divisors, excluding the number itself