ANT - Any of various insects in the family Formicidae in the order Hymenoptera, typically living in large colonies composed almost entirely of flightless females.
ANY - To even the slightest extent, at all.
ART - Human effort to imitate, supplement, alter, or counteract the work of nature.
RAN - Simple past of run.
RAT - A medium-sized rodent belonging to the genus Rattus.
RAY - A beam of light or radiation.
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.
TRY - To attempt. Followed by infinitive.
NAY - No.
TART - Sharp to the taste; acid; sour.
TRAY - Trouble; annoyance; anger.
YARN - A twisted strand of fiber used for knitting or weaving.
RANT - A criticism done by ranting.
ARTY - Pretending to artistic worth; high-flown.
NARY - Not one.
RATTY - Similar to a rat; ratlike.
NATTY - Smart and fashionable.
TYRANT - An absolute ruler who governs without restriction.