More N1 vocabulary

• 広まるひろまるto spread; to be propagated
• 共和きょうわrepublicanism; cooperation
• 果ないはかないfleeting; transient; short-lived; momentary; vain; fickle; miserable; empty; ephemeral
• 前売りまえうりadvance sale; booking
• 荒っぽいあらっぽいrough; rude
• 製鉄せいてつiron manufacture