1. A method for suggesting a search query based on terms, the method comprising: receiving, via a processor, a search query having at least a first term; identifying a plurality of related terms having a relationship to the first term, based on prior search queries; determining to ignore a first related term of the plurality of related terms, based on the first related term having not been observed with the first term over a specified time interval; and generating a plurality of predictive suggestions for completing the search query, wherein none of the plurality of predictive suggestions includes the ignored first related term, wherein a first of the plurality of predictive suggestions includes at least the first term, and wherein a second of the plurality of predictive suggestions includes an identified semantic equivalent of the first term and a second related term of the plurality of related terms, wherein the identified semantic equivalent is synonymous with the first term.
7. The method of claim 1 , wherein generating the plurality of predictive suggestions further comprises: generating a plurality of potential suggestions; and eliminating at least one of the plurality of potential suggestions based on a measure of semantic similarity to at least one other potential suggestion of the plurality of potential suggestions, wherein the measure of semantic similarity indicates that the at least one eliminated potential suggestion is synonymous with the at least one other potential suggestion.