I SAID TO the coach, we should establish a baseball team so that we can throw balls at mitts.
to establish (a committee to look into the matter)（a political party), to found (a hospital or think tank) , provide (money) , or throw (a party for a valuable customer) . More broad and casual than the related term 設定（せってい）
to establish a regulation or rule - also it is often seen on the 'setup' or 'preferences' menus of software when you install it.
an institution, some facilities. (a mental hospital / sports stadium / orphanage / water filtration plant)