A large post, often used as supporting architecture.
"The ancient temple featured massive stone pillars that supported its heavy roof."
In plain English: A pillar is a large, strong vertical column that supports something heavy and keeps it from falling down.
"The old church is supported by four massive stone pillars holding up its roof."
Usage: Use the spelling "pilar" in Spanish contexts but never confuse it with "pillar," which is exclusively English for a structural support. Avoid using "pillar" metaphorically to describe non-structural roles unless emphasizing foundational importance or stability within an organization.
To provide with pillars or added strength as if from pillars.
"The ancient architect designed the hall to support the heavy roof by buttressing its walls."
In plain English: To pillar something means to support it with strong columns so that it does not fall down.
"You can use this app to pillar your financial goals with small, consistent steps every day."
A surname.
"Several members of the Pillar family served in the colonial legislature during the late 19th century."
The word entered English via the path of Middle and Old French before arriving in its current form. It originally meant a structural support like a pier or mole, derived directly from the Latin pila.