ORE - Rock that contains utilitarian materials; primarily a rock containing metals or gems which (at the time of the rock's evaluation and proposal for extraction) are able to be separated from its neighboring minerals and processed at a cost that does not exceed those materials' present-day economic values.
OUR - Belonging to us.
OUT - Away from home or one's usual place, or not indoors.
ROT - To suffer decomposition due to biological action, especially by fungi or bacteria.
TOE - Each of the five digits on the end of the foot.
TORE - Hard, difficult; wearisome, tedious.
TOUR - A journey through a particular building, estate, country, etc.
EURO - The currency unit of the European Monetary Union.
ROTE - The process of learning or committing something to memory through mechanical repetition, usually by hearing and repeating aloud, often without full attention to comprehension or thought for the meaning.
ROUT - To make a noise; roar; bellow; snort.
OUTER - Outside; external.
QUOTE - To refer to (part of) a speech that has been made by someone else.
ROUTE - A course or way which is traveled or passed.
TORQUE - A rotational or twisting effect of a force; a moment of force, defined for measurement purposes as an equivalent straight line force multiplied by the distance from the axis of rotation (SI unit newton-metre or Nm; imperial unit foot-pound or ft.lbf).