incubate — to sit upon (eggs) for the purpose of hatching.
inculcate — to implant by repeated statement or admonition; teach persistently and earnestly (usually followed by upon or in): to inculcate virtue in the young.
indicate — to be a sign of; betoken; evidence; show: His hesitation really indicates his doubt about the venture.
innovate — to introduce something new; make changes in anything established.
instigate — to cause by incitement; foment: to instigate a quarrel.
insulate — to cover, line, or separate with a material that prevents or reduces the passage, transfer, or leakage of heat, electricity, or sound: to insulate an electric wire with a rubber sheath; to insulate a coat with down.
integrate — to bring together or incorporate (parts) into a whole.
intimate — associated in close personal relations: an intimate friend.
inundate — to flood; cover or overspread with water; deluge.
middleweight — a boxer or other contestant intermediate in weight between a welterweight and a light heavyweight, especially a professional boxer weighing up to 160 pounds (72.5 kg).
mitigate — to lessen in force or intensity, as wrath, grief, harshness, or pain; moderate.
silicate — Mineralogy. any of the largest group of mineral compounds, as quartz, beryl, garnet, feldspar, mica, and various kinds of clay, consisting of SiO 2 or SiO 4 groupings and one or more metallic ions, with some forms containing hydrogen. Silicates constitute well over 90 percent of the rock-forming minerals of the earth's crust.
simulate — to create a simulation, likeness, or model of (a situation, system, or the like): to simulate crisis conditions.
stimulate — to rouse to action or effort, as by encouragement or pressure; spur on; incite: to stimulate his interest in mathematics.
stipulate — to make an express demand or arrangement as a condition of agreement (often followed by for).
syncopate — Music. to place (the accents) on beats that are normally unaccented. to treat (a passage, piece, etc.) in this way.
syndicate — a group of individuals or organizations combined or making a joint effort to undertake some specific duty or carry out specific transactions or negotiations: The local furniture store is individually owned, but is part of a buying syndicate.
titillate — to excite or arouse agreeably: to titillate the fancy. Synonyms: rouse, tempt, tease.
vindicate — to clear, as from an accusation, imputation, suspicion, or the like: to vindicate someone's honor.
Four-or-more syllable rhymes
anticipate — If you anticipate an event, you realize in advance that it may happen and you are prepared for it.
articulate — If you describe someone as articulate, you mean that they are able to express their thoughts and ideas easily and well.
assimilate — When people such as immigrants assimilate into a community or when that community assimilates them, they become an accepted part of it.
debilitate — If you are debilitated by something such as an illness, it causes your body or mind to become gradually weaker.
discriminate — to make a distinction in favor of or against a person or thing on the basis of the group, class, or category to which the person or thing belongs rather than according to actual merit; show partiality: The new law discriminates against foreigners. He discriminates in favor of his relatives.
disintegrate — to separate into parts or lose intactness or solidness; break up; deteriorate: The old book is gradually disintegrating with age.
eliminate — Completely remove or get rid of (something).
facilitate — to make easier or less difficult; help forward (an action, a process, etc.): Careful planning facilitates any kind of work.
incriminate — to accuse of or present proof of a crime or fault: He incriminated both men to the grand jury.
manipulate — to manage or influence skillfully, especially in an unfair manner: to manipulate people's feelings.
matriculate — to enroll in a college or university as a candidate for a degree.
originate — to take its origin or rise; begin; start; arise: The practice originated during the Middle Ages.
participate — to take or have a part or share, as with others; partake; share (usually followed by in): to participate in profits; to participate in a play.
pontificate — the office or term of office of a pontiff.
prevaricate — to speak falsely or misleadingly; deliberately misstate or create an incorrect impression; lie.