practice

1 practice (US) verb
or British practise /ˈpræktəs/
practices; practiced; practicing
1 practice (US)
verb
or British practise /ˈpræktəs/
practices; practiced; practicing
Britannica Dictionary definition of PRACTICE
1 
: to do something again and again in order to become better at it
[no object]
[+ object]
2 
[+ object] : to do (something) regularly or constantly as an ordinary part of your life
3 
[+ object] : to live according to the customs and teachings of (a religion)
4 
: to have a professional medical or legal business
[+ object]
[no object]
2 practice /ˈpræktəs/ noun
plural practices
2 practice
/ˈpræktəs/
noun
plural practices
Britannica Dictionary definition of PRACTICE
1 
a  [noncount] : the activity of doing something again and again in order to become better at it
b  : a regular occasion at which you practice something
[noncount]
[count]
— often used before another noun
2 
: something that is done often or regularly
[count]
[noncount]
3 
[noncount] : the action of doing or using something
4 
[count] : a professional medical or legal business
— see also family practice, group practice, private practice

in practice

— used to say what is actually done or what the actual effect or result of something is