pilastro meaning in English

bollard [bollards]▼(post preventing vehicles from entering pedestrian area)
noun
[UK: ˈbɒ.ləd] [US: ˈbɑː.lərd]

mainstay [mainstays]▼(chief support)
noun
[UK: ˈmeɪn.steɪ] [US: ˈmeɪn.ˌste]

pier [piers]▼(structure supporting the junction between two spans of a bridge)
noun
[UK: pɪə(r)] [US: ˈpɪr]

pillar [pillars]▼(large post, often used as supporting architecture)
noun
[UK: ˈpɪ.lə(r)] [US: ˈpɪ.lər]John is a pillar of the community. = John è un pilastro della comunità.

interpilaster▼noun