Ask.com, the fourth-ranked search engine, has completed its acquisition of Lexico Publishing Group, which owns Dictionary.com, Thesaurus.com, and Reference.com.
Ask.com, a wholly owned subsidiary of InterActiveCorp, had announced the all-cash deal in mid-May. Financial terms of the deal, which closed Thursday, were not released. Lexico, a privately held company based in Long Beach, Calif., debuted in 1995 with Dictionary.com.
Altogether, Dictionary.com, Thesaurus.com, and Reference.com had more than 28 million unique visitors in March, according to Lexico.