to jest

in other words, namely, that is to say

granica

1. border (line separating two regions) [+ między (instrumental) = between what]
2. edge, limit (bound beyond which one may not go) [+ między (instrumental) = between what]
3. limit (moment or situation that defines what is acceptable)
4. limit (dividing line or factors that differentiate something)
5. limit (value to which a sequence converges)
6. (obsolete) type of children's game

jest

1. third-person singular present indicative of być; is
2. is, equals (see also wynosi)

to

• Conj

  1. used to attribute to the known object a characteristic that helps one know more about the topic; may optionally be followed by jest [+nominative]
  2. used to juxtapose elements that are equivalent
  3. used to indicate that the subject of the conversation has peculiarities which are familiar to the interlocutors, so that nothing else needs to be said about it in order to understand the topic
  4. in that case, then (used in if-constructions)

• Particle
• Pron