The expression “coffee break” was first attested in 1952 in glossy magazine advertisements by the Pan-American Coffee Bureau.
CARDINALITY
cardinality
(noun) (mathematics) the number of elements in a set or group (considered as a property of that grouping)
Source: WordNet® 3.1
Etymology
Noun
cardinality (plural cardinalities)
(set theory, of a set) The number of elements a given set contains.
(data modeling, databases) The property of a relationship between a database table and another one, specifying whether it is one-to-one, one-to-many, many-to-one, or many-to-many.
(religion) The status of a cardinal.
Usage notes
(set theory): The cardinality of an infinite set is an infinite cardinal number. The smallest such number, called aleph-null and denoted ℵ₀, describes the natural numbers; the next is aleph-one. While it is known that the cardinality of the real numbers is greater than aleph-null, it is the subject of the still unproven continuum hypothesis that it equals aleph-one.
Synonyms
• (in set theory): power
Source: Wiktionary
Recent Word Finds
Word of the Day
4 May 2025
CRISP
(adjective) (of something seen or heard) clearly defined; “a sharp photographic image”; “the sharp crack of a twig”; “the crisp snap of dry leaves underfoot”
Coffee Trivia
