What is the meaning of Ręka?

arm; hand (upper limb)

hand (person's action)

arms; possession; power; care, supervision

hand; control

surety (securing the obligation, execution of the sentence, bringing the accused to court)

measure of honey containing six to fifteen gallons

upper limb

1. arm

   arm

   hand

   handball (offence of a player other than the goalkeeper touching the ball with the hand or arm on the field during play)

   hand (person that can perform a task, usually one requiring the hands)

   hand (person or institution that has the authority or competence or the ability to decide in an issue)

   hand (right to marriage)

   style of writing

   parcel of land

   side (one half (especially left or right) of something or someone)

   Source: wiktionary.org