This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Composed of or divided into three parts.

adj. Relating to or executed by three parties: a tripartite agreement.

adj. In three parts.

adj. Done by three parties (as an agreement).

adj. Divided into three parts; triparted.

adj. Having three corresponding parts or copies.

adj. Made between three parties.

Divided into three parts; three-parted.

Having three corresponding parts or copies.

Made or concluded between three parties: as, a tripartite treaty.

In heraldry, same as triparted.

In entomology, divided from the apex to the base by two slits, forming three nearly equal parts.

In botany, divided into three segments nearly but not quite down to the base: as, a tripartite leaf. Also triparted.

In mathematics, homogeneous in three sets of variables.

adj. involving three parties or elements

"Ms. STEWART: Well first, you know, listeners might be interested to know that the International Labour Organization is not just a place where governments come to talk about policy, but we're what we call a tripartite organization that includes governments, workers 'organizations and employers' organizations."

multilateral    many-sided   

triparted   

apartheid   

astrategic    eight-line    arainbow    hylighter    statelier