Definition

1. Adjective:
   • Being the ordinal number corresponding to the cardinal number one hundred fifty: Denoting position or order in a sequence, specifically the position following the one hundred forty-ninth and preceding the one hundred fifty-first.

Usage

• As an adjective: It is used to describe the position of an item in an ordered list of 150 or more items. It is typically placed before the noun it modifies.
  • This year marks the hundred-and-fiftieth anniversary of the university's founding.
  • She finished in hundred-and-fiftieth place in the marathon.

Advanced Usage

• In formal and historical contexts: Often used to denote significant anniversaries (sesquicentennials) or specific positions in long sequences.
  • The nation celebrated its hundred-and-fiftieth year of independence with a grand parade.

Variants and Related Words

• 150th: The standard numerical abbreviation for "hundred-and-fiftieth."
• One hundred fiftieth: An alternative written form.
• Sesquicentennial (noun): Pertaining to a period of 150 years; a 150th anniversary.
  • The town's sesquicentennial celebration was a week-long event.

Synonyms

• 150th: The direct numerical synonym.

Notes on Meaning

• This word functions exclusively as an ordinal number adjective. It does not have other meanings as a noun or verb. Its use is specific to sequencing and enumeration.

Adjective

1. the ordinal number of one hundred fifty in counting order