twinning

/T W IH1 N IH0 NG/
verb
  1. 1

    (obsolete outside Scotland) To separate, divide.

  2. 2

    (obsolete outside Scotland) To split, part; to go away, depart.

  3. 3

    (usually in the passive) To join, unite; to form links between (now especially of two places in different countries).

    โ€œCoventry twinned with Dresden as an act of peace and reconciliation, both cities having been heavily bombed during the war.โ€

  4. 4

    To be paired or suited.

  5. 5

    To give birth to twins.

  6. 6

    To be born at the same birth.

noun
  1. 1

    Action of the verb to twin

  2. 2

    Giving birth to twins

  3. 3

    The pairing of similar objects (such as towns)

  4. 4

    The formation of twin crystals

  5. 5

    The conversion of a road into a dual carriageway

adjective
  1. 1

    Biparous

Source: https://en.wiktionary.org/wiki/twin, https://en.wiktionary.org/wiki/twinning