一石二鳥: “one stone, two birds” → kill two birds with one stone: do one task and finish two or more goals

rock (natural mineral aggregate)

include, contain / imply

Synonym of 含む (fukumu)

潮汐学: tidology

petrology

隻: boats / 石: (slang) transistors

堰: weir, embankment / 咳: cough / 関: frontier pass, close, relation / 席: seat, mat, banquet / 積: accumulate, store up, amass / 籍: record, register, list, census / 舎: house, dwelling, dwell, reside

関: Seki (a city in Gifu Prefecture, Japan); a surname

(mineralogy) sanidine