When is a city a city
Whan it has a seat ---------------- A City is a City when it is INCORPORATED.... essentially
wiki.answers.com/Q/When_is_a_city_a_city

'which city' or 'what city'
Both which and what can be used
wiki.answers.com/Q/'which_city'_or_'what_city'

Is it citys or cities
The plural form of city is cities.
wiki.answers.com/Q/Is_it_citys_or_cities

Why is a city a city
A city is a city because it was one the the important places in the world.
wiki.answers.com/Q/Why_is_a_city_a_city

Which cities are European cities and are not capitol ciTIES
Help us answer this question: Which cities are European cities and are not capitol ciTIES [In category: Countries States and Cities]
wiki.answers.com/Q/Which_cities_are_European_cities_and_are_not_capitol_ciTIES

MASIS (abbreviation)
MASIS is short for: Materiel Acquisition Support Information System
www.answers.com/topic/masis-abbreviation

Masis (village)
Masis (village) For the city, see Masis (city) . Coordinates : 40°04′02″N 44°26′10″E
www.answers.com/topic/masis-village

Masì (2005 Album by NEeMA)
Masì Artist: NEeMA Release Date: March 16, 2005 Genre: Folk Previous: Masz to Jak W Banku
www.answers.com/topic/mas-2005-album-by-neema-1

Masi
for the Paper Mulberry tree Masi, Italy , a city in the province of Padua, northern Italy Masi, Norway
www.answers.com/topic/masi

Masi (family name)
Masi Frequency: (1053) (number of times this surname appears in a sample database of 88.7 million
www.answers.com/topic/masi-1