Third-person singular simple present indicative form of liaise.(verb)
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Use "liaises" in a sentence
"The Art Loss Register, which liaises with the police and the art trade to help track down stolen artworks, waived its fees to take up the church's cause."
"It is led by Cabinet Secretary Gus O'Donnell, the country's top civil servant, who liaises with the private secretaries for both the queen and prime minister"
"The Lifeline team liaises with the district administration to make sure all the red tape -- permits and so forth -- and publicity are dealt with before the train arrives."