Warszawa

1. Warsaw (the capital and largest city of Poland)
2. Warsaw (the capital and largest city of the Masovian Voivodeship, Poland)
3. Warsaw (Polish presidency and its administration)
4. Warsaw authorities
5. Warsaw residents
6. (colloquial) sports team from Warsaw
7. FSO Warszawa (line of cars manufactured in Warsaw between 1951 and 1973)

jest

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

pięknym

1. inflection of piękny:
2. inflection of piękny:

miastem

instrumental singular of miasto