ANT - Any of various insects in the family Formicidae in the order Hymenoptera, typically living in large colonies composed almost entirely of flightless females.
ART - Human effort to imitate, supplement, alter, or counteract the work of nature.
RAT - A medium-sized rodent belonging to the genus Rattus.
RAW - Of weather: unpleasantly damp or cold.
TAN - A symbol of the trigonometric function tangent.
TAR - A black, oily, sticky, viscous substance, consisting mainly of hydrocarbons derived from organic materials such as wood, peat, or coal.
WAR - Organized, large-scale, armed conflict between countries or between national, ethnic, or other sizeable groups, usually involving the engagement of military forces.
NAW - Eye dialect spelling of no.
WANT - A desire, wish, longing.
WARN - To give warning.
WART - A type of deformed growth occurring on the skin caused by the human papillomavirus (HPV).
RANT - A criticism done by ranting.
WARRANT - A protector or defender.