Definitions:
having the power to move heavy weights or perform other physically demanding tasks

able to withstand force, pressure, or wear

very intense

used after a number to indicate the size of a group

denoting a class of verbs in germanic languages that form the past tense and past participle by a change of vowel within the stem rather than by addition of a suffix (e.g. swim, swam, swum).

relating to or denoting the strongest of the known kinds of force between particles, which acts between nucleons and other hadrons when closer than about 10⁻¹³ cm (so binding protons in a nucleus despite the repulsion due to their charge), and which conserves strangeness, parity, and isospin.