(anatomy) Any of the twelve vertebrae in the chest region of the spine.

(anatomy) Of the thorax.

(zoology) One of a group of fishes having the ventral fins placed beneath the thorax or beneath the pectoral fins.

In a thorough or complete manner.

In a thoughtful or pensive manner. / In a way that shows kindness or consideration for others.

(Yorkshire, transitive) To be able to justify the expense of.

Demonstrating thought or careful consideration. / Demonstrating kindness or consideration for others.

With great attention to detail; complete, thorough.

Having thorns or spines / (figuratively) Troublesome or vexatious / Aloof and irritable

Thoughtful and considerate attention. / Careful deliberation before action.