boulevard

Short definition from Wiktionary

Noun

1. 1
   A broad, well-paved and landscaped thoroughfare.
2. 2
   The landscaping on the sides of a boulevard or other thoroughfare.
3. 3
   A strip of land between a street and sidewalk.
4. 4
   The grassy area in the middle of some streets; A refuge island.

Proper noun

1. 1
   A census-designated place in San Diego County, California, United States.