timber - trees in a forest regarded as a source of wood. / material wood, (UK) timber, (US) lumber - wood that has been pre-cut and is ready for use in construction.

measurement

measure

to use / to employ / to make use of, to apply / to spend

accurate; exact; correct; precise

accuracy; exactness; correctness; precision

carpenter's square / square (shape) / rule; law

(astronomy) quadrature

he / distal demonstrative, something far off removed from both speaker and listener: that / boyfriend

distal demonstrative, something far off removed from both speaker and listener: that, yon / particularly, male personal third person pronoun: he / by extension from he: boyfriend