硬

Esp. 固い and 堅い for wood, 硬い for metal and stone

hard; solid; tough

stiff; tight; wooden; unpolished (e.g. writing)

strong; firm (not viscous or easily moved)

safe; steady; honest; steadfast

obstinate; stubborn

bookish; formal; stuffy

stiffening; rigidity; rigor; stiffness; ossification; petrification

to stiffen; to become stiff; to harden

hardness; stiffness

coin

hard currency

hardness; solidity

hardness

firm; strong; unbending; unyielding; uncompromising; stubborn; tough; hard-line

hardening; vulcanization; vulcanisation; sclerosis; curing

hardening (of attitude, stance, etc.); stiffening; toughening

Finance

upturn (in the market); firming up

somewhat hard; somewhat firm; fairly hard; on the hard side

hard steel

forced march

doing something on a very strict schedule

hard-liners; diehards; hawks

Adjectival nouns or quasi-adjectives (keiyodoshi)

(young) man with traditionally masculine interests; tough boy; man's man

hard news; reporter who covers political and economic affairs

Adjectival nouns or quasi-adjectives (keiyodoshi)

strait-laced type (with respect to relationships)

bullish traders

hard-liners; diehards; hawks

Medicine

cerebral infarction; (ischemic) stroke

hard-line policy; tough measure

Medicine

cirrhosis (of the liver)

hardness and softness; hard line and moderate line

hard ball; regulation ball

Abbreviation

cemented carbide

superhard; ultrahard

crude; immature; unpolished

hard water

hard (esp. of hardball, tennis, etc.)

hard line