keystone

[ˈkiːstəʊn]
nounpl: keystones
pedra de esquina
1. The central stone of an arch that locks the other stones in place
The keystone of the arch was carefully positioned to support the entire structure.
A pedra de esquina do arco foi cuidadosamente posicionada para sustentar toda a estrutura.
2. A fundamental element upon which something depends; the key factor
Education is the keystone of economic development.
A educação é a pedra de esquina do desenvolvimento econômico.
3. Something that is essential or crucial to a system or concept
Trust is the keystone of any successful relationship.
A confiança é a pedra de esquina de qualquer relacionamento bem-sucedido.
In American English, 'keystone' is frequently used metaphorically in business, education, and social contexts to describe critical foundational elements. In Portuguese, 'pedra de esquina' maintains both literal architectural meaning and figurative importance, similar to English usage. The term is recognizable across both Brazilian and European Portuguese, though regional variations exist in technical architectural terminology.
Synonyms / Sinônimos
cornerstonefoundationlinchpincruxcornerstone
Antonyms / Antônimos
irrelevancesuperficiality

Regional Variations

General Brazilian
pedra de esquina
Most common translation, used both literally and figuratively
General Brazilian
pedra-chave
Alternative translation, less common but used in architectural contexts
Portugal
pedra de fecho
Traditional architectural term used in Portugal
General
elemento fundamental
Descriptive translation used when referring to metaphorical usage

Related Words

archfoundationcornerstonepillarsupport

Related Idioms & Phrases

the keystone of success
lay the keystone
the keystone species (in ecology)
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