center

1 center (US) noun
or British centre /ˈsɛntɚ/
plural centers
1 center (US)
noun
or British centre /ˈsɛntɚ/
plural centers
Britannica Dictionary definition of CENTER
1 
[count] : the middle point or part of something
— often used before another noun
2 
[singular]
a  : a person or thing that is causing a lot of interest, argument, etc.
b  : the position of a person or thing that is causing a lot of interest, argument, etc.
◊ If you are at the center of things, you are closely involved in things that are happening.
3 
[count] : a building or set of buildings used by the people of a city, town, area, etc., for a particular purpose
— see also community center
4 
[count] : a place where a particular activity happens
— see also nerve center, shopping center
5 
[count] : an area where many people live
6 
[count] : the main part of a town or city where there are many stores, restaurants, offices, etc.
7 
[singular] : the political position of people who support ideas that are not extreme : a moderate political position between the positions of people who are conservative and liberal
8 
[count] sports : someone who plays a middle position on a team in sports like basketball, hockey, football, and soccer

front and center

— see 2front

left, right, and centre

— see 2left
2 center (US) verb
or British centre /ˈsɛntɚ/
centers; centered; centering
2 center (US)
verb
or British centre /ˈsɛntɚ/
centers; centered; centering
Britannica Dictionary definition of CENTER
1 
[+ object] : to place (something) in the middle of something — often used as (be) centered
2 
a  [no object] : to be mainly concerned about or involved with someone or something — usually + around, round, on, or upon
b  [+ object] : to cause (something) to be mainly concerned about or involved with something — usually + around, round, on, or upon,
3 
[+ object] : to have the main or most important part of (something, such as an organization or activity) in or at a specified place — usually used as (be) centered
— see also centered