• (RP) IPA: /ɪˈkwɪvələnt/
• (America) IPA: /ɪˈkwɪvələnt/
• (British) IPA: /ɪˈkwɪvələnt/

equivalent

1. Similar or identical in value, meaning or effect; virtually equal.

   • For now to serve and to minister, servile and ministerial, are terms equivalent.

2. (mathematics) Of two sets, having a one-to-one correspondence; equinumerous.
   • Comprehensive MCQ's in Mathematics, page 3 ↗:

     Finite sets A and B are equivalent sets only when n(A) = n(B) i.e., the number of elements in A and B are equal.

   • 1950, E. Kamke, Theory of Sets, page 16 ↗:

     All enumerable sets are equivalent to each other, but not to any finite set.

   • 2000, N. L. Carothers, Real Analysis, page 18 ↗:

     Equivalent sets should, by rights, have the same "number" of elements. For this reason we sometimes say that equivalent sets have the same cardinality.

   • 2006, Joseph Breuer, Introduction to the Theory of Sets, page 41 ↗:

     The equivalence theorem: If both M is equivalent to a subset N₁ of N and N is equivalent to a subset M₁ of M, then the sets M and N are equivalent to each other.

3. (mathematics) Relating to the corresponding elements of an equivalence relation.
4. (chemistry) Having the equal ability to combine.
5. (cartography) Of a map, equal-area.
6. (geometry) Equal in measure but not admitting of superposition; applied to magnitudes.

   A square may be equivalent to a triangle.

• French: équivalent
• German: gleichwertig, entsprechend, äquivalent
• Italian: equivalente
• Portuguese: equivalente
• Russian: равноце́нный
• Spanish: equivalente

• French: équivalent
• German: äquivalent
• Portuguese: equivalente
• Spanish: equivalente

• French: équivalent
• German: äquivalent
• Portuguese: equivalente
• Russian: эквивале́нтный

equivalent (plural equivalents)

1. Anything that is virtually equal to something else, or has the same value, force, etc.
   • 18, Thomas Babington Macaulay, chapter 7, in The History of England from the Accession of James the Second, volume (please specify ), London: Longman, Brown, Green, and Longmans, OCLC 1069526323 ↗:

2. (chemistry) An equivalent weight.

• French: équivalent
• German: Entsprechung, Äquivalent
• Portuguese: equivalente
• Russian: эквивале́нт
• Spanish: equivalente

equivalent (equivalents, present participle equivalenting; past and past participle equivalented)

1. (transitive) To make equivalent to; to equal.