hard; solid; stiff; tight; strong; firm (not viscous or easily moved); safe
stiffening; rigidity; rigor; stiffness; ossification; petrification
firm; strong; unbending; unyielding; uncompromising; stubborn
hardening; vulcanization; hardening (of attitude, stance, etc.); stiffening; upturn (in the market); firming up
tough measure; firm step; strong measure
hard-liners; diehards; (young) man with traditionally masculine interests; tough boy; hard news; reporter who covers political and economic affairs
hard-liners; diehards; hawks
hard-line policy; tough measure
hardness and softness; hard line and moderate line
hard ball; regulation ball
cemented carbide; superhard; ultrahard
arteriosclerosis; hardening of the arteries
crude; immature; unpolished
hard (esp. of hardball, tennis, etc.)
thickheaded; obstinate; inflexible; stubborn
bone; firm; uncompromising
subdural hematoma; subdural hemorrhage; subdural haemorrhage
hard glass; hardened glass
hardener; curative agent; stiffening agent
hard rubber (e.g. ebonite, vulcanite)
regulation baseball (as opposed to the variety played with a rubber ball)
amyotrophic lateral sclerosis; ALS; Lou Gehrig's disease
epidural hematoma; epidural haematoma
tennis; tennis played with regulation balls
arteriosclerosis; hardening of the arteries
epidural anaesthesia; epidural anesthesia
hard line; hard-line; tough line; hawkish line
bony fishes; osteichthyans
plaster (type of bandage)
train ticket printed on thick paper
hydrogenated oil; hardened oil
primary biliary cirrhosis
cranial dura mater; cerebral dura mater; dura mater encephali
organizational inertia; organisational inertia
let's put formalities aside; let's not speak so stiffly
epidural haemorrhage; epidural hemorrhage; epidural bleeding
arteriosclerosis obliterans
extremely hard; rock solid; super stiff
forced march; (fig.) doing something on a very strict schedule
cerebral infarction; (ischemic) stroke
hardener (catalyst in hardening thermosetting materials)
thermosetting material (esp. plastics and resins)
firmness; hardness; stiffness; honesty
high-contrast (photography); hard tone; bullish (market); firm
stalwart and insurgent factions
subacute sclerosing panencephalitis
sclerophyll forest; sclerophyllous forest; hardwood forest
Osteichthyes (class comprising the bony fishes and sometimes their descendants, i.e. tetrapods)
primary lateral sclerosis; PLS
atherosclerosis; atherosclerotic
age hardening; precipitation hardening; particle hardening
bony fishes; Osteichthyes
scirrhous carcinoma; (a) scirrhus
hard cover (of a book); stiff cover