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in the PONS Dictionary

I. hard·en [ˈhɑ:dən, Am ˈhɑ:rd-] VB trans

1. harden (make harder):

to harden sth
etw härten
to harden sth arteries
etw verhärten

2. harden (make tougher) attitude:

to harden sth
etw verhärten
to harden one's heart
sein Herz verhärten
if she could harden her heart ...
wenn sie weniger sensibel wäre ...
to harden sb [to sth]
jdn [gegen etw acc] abstumpfen pej
to harden sb [to sth]
jdn [gegen etw acc] unempfindlich machen
the terrorists were hardened to killing
den Terroristen machte das Töten nichts mehr aus

3. harden (make stronger) muscles:

to harden sth
etw kräftigen
to harden one's body
seinen Körper stählen
to harden sb [to sth]
jdn [gegen etw acc] abhärten

II. hard·en [ˈhɑ:dən, Am ˈhɑ:rd-] VB intr

1. harden (become hard):

harden
sich acc verfestigen
harden
hart werden

2. harden (become tough):

harden
sich acc verhärten
harden attitude
unnachgiebig werden
harden face
sich versteinern
the government has hardened to the view that ...
die Regierung ist zu der festen Ansicht gelangt, dass ...

3. harden ECON:

harden prices
anziehen

harden off VB trans

to harden off ⇆ sth plant
etw widerstandsfähig machen
OpenDict entry

strain harden VB

to strain harden sth TECH
etw kalthärten
OpenDict entry

work-harden VB

to work-harden sth TECH
etw kalthärten
Present
Iharden
youharden
he/she/ithardens
weharden
youharden
theyharden
Past
Ihardened
youhardened
he/she/ithardened
wehardened
youhardened
theyhardened
Present Perfect
Ihavehardened
youhavehardened
he/she/ithashardened
wehavehardened
youhavehardened
theyhavehardened
Past Perfect
Ihadhardened
youhadhardened
he/she/ithadhardened
wehadhardened
youhadhardened
theyhadhardened
See further verb tables
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