liberty

liberty /ˈlɪbɚti/ noun
plural liberties
liberty
/ˈlɪbɚti/
noun
plural liberties
Britannica Dictionary definition of LIBERTY
1 
[noncount] : the state or condition of people who are able to act and speak freely : freedom
2 
[noncount] : the power to do or choose what you want to
3 
[count] : a political right

at liberty

formal
1 
: able to act or speak freely — followed by to + verb
2 
: no longer held or kept as a prisoner

take liberties

1 
disapproving : to make important changes to something — usually + with
2 
old-fashioned : to be informal and friendly toward someone in a way that is not proper — usually + with

take the liberty of

◊ If you take the liberty of doing something, you do something without asking for permission to do it.