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in the PONS Dictionary

opened up LAND USE

I. open up VB intr

1. open up (start business):

open up shop, store, etc.
open up shop, store, etc.
open up radio station

2. open up (become more confiding):

open up person
sich acc öffnen inf
open up person

3. open up (shoot):

4. open up (accelerate):

Phrases:

II. open up VB trans

1. open up (from closed):

2. open up (make available):

to open up ⇆ sth
to open up ⇆ sth

3. open up (expand):

to open up ⇆ sth

4. open up MED inf (operate on):

to open up ⇆ sb
jdn aufschneiden inf
Present
Iopen up
youopen up
he/she/itopens up
weopen up
youopen up
theyopen up
Past
Iopened up
youopened up
he/she/itopened up
weopened up
youopened up
theyopened up
Present Perfect
Ihaveopened up
youhaveopened up
he/she/ithasopened up
wehaveopened up
youhaveopened up
theyhaveopened up
Past Perfect
Ihadopened up
youhadopened up
he/she/ithadopened up
wehadopened up
youhadopened up
theyhadopened up