English Reference
noun

inception

n.
US /ˌɪnˈsɛpʃən/ UK /ɪnsˈɛpʃən/ in·cep·tion UK spelling inceptions

  1. 01 C1 Advanced Formal

    the start of something, like a business, a plan, or a project.

    the creation or beginning of something; the formal establishment of an entity or process.

    Simple

    The project has been successful since its inception three years ago.

    In context

    Since its inception in the late 1990s, the charity has expanded its operations to over forty countries across three continents.

    Usage

    Often follows the possessive 'its' or 'their', or appears in the phrase 'since its inception'.

  2. 02 C2 Proficiency InformalSlang

    the idea of something being inside itself, like a dream within a dream.

    a layering, nesting, or recursion of something within itself; a modern usage popularized by cinema.

    Simple

    The way this app opens another version of itself is pure inception.

    In context

    The architectural design featured a courtyard within a courtyard, creating a sense of inception that disoriented first-time visitors.

    Teacher's tip

    This sense is a modern cultural reference to the 2010 film 'Inception'; it is common in internet culture but should be avoided in formal academic writing.

In the eight years from the campaign's inception in 1966 until 1974 when it levelled off, Greenland's fertility rate plunged from seven children per woman to 2.3.

BBC News· 28 Aug 2026

Special education has evolved since its formal inception in Ontario in the 1980s.

Phys.org· 27 Aug 2026

Late Middle English, borrowed from Latin inceptiō, from inceptus, perfect passive participle of incipiō (“I begin”). The layering sense derives from the 2010 science fiction film Inception, in which a team of people infiltrate someone’s subconscious mind, proceeding through several layers of dreams with the goal of causing someone to incept an idea.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Origin Latin inceptiō
Level C1 · Advanced
Frequency Frequent
Updated