A wide street or thoroughfare WordNet 3.0 & Open English WordNet

In landscaping, an avenue, alameda, or allée, is traditionally a straight path or road with a line of trees or large shrubs running along each side, which is used, as its Latin source venire indicates, to emphasize the "coming to," or arrival at a landscape or architectural feature. Wikipedia

A boulevard is a type of broad avenue planted with rows of trees, or in parts of North America, any urban highway. Wikipedia

Traditionally a straight path or road with a line of trees, in the shifted sense a tree line itself, or some of boulevards Wikipedia Disambiguation

Type of road, typically a wider more formal road. Wikipedia Disambiguation

Type of large road, usually running through a city Wikidata

type of road or path Wikidata

A broad, well-paved and landscaped thoroughfare. OmegaWiki

A road at both sides lined with trees. OmegaWiki

A street, especially, in cities laid out in a grid pattern, one that is in a particular side of the city or that runs in a particular direction. Wiktionary

The landscaping on the sides of a boulevard or other thoroughfare. Wiktionary