一

at one's discretion

partial relaxation; partial easing

Grammar

first-person pronoun

dealing a hard (heavy, crushing) blow (to)

Biology

primary producer

general election (of all members of a local government body)

Dactylostalix ringens (species of orchid); rigid Dactylostalix

Botany

annual herb

administrative cost; head office expenses; general management expenses

non-prescription drug; over-the-counter drug

the first sleep (of silkworms)

Anemone nikoensis (species of anemone); ichirinso; poppy anenome

sailing before the wind; everything is going well

lump-sum payment; paying in a lump sum

primary structure (e.g. of a protein)

two nights before last

Computing

primary cache; level 1 cache

one's family, relations, and followers

one reading (of a poem aloud) leaves one with ceaseless sighs of admiration

first string (of a shamisen, etc.)

built in a night; stopgap; hastily written

a reading leaves one with ceaseless sighs of admiration

hitoegusa (Monostroma nitidum)

decoration hung on the New Year's pine on New Year's eve