n (literary) Any sustained note or movement; a song; a distinct portion of an ode or other poem; also, the pervading note, or burden, of a song, poem, oration, book, etc.; theme; motive; manner; style
n (biology) A particular breed or race of animal, microbe etc.
n (music) A portion of music divided off by a double bar; a complete musical period or sentence; a movement, or any rounded subdivision of a movement.
n The act of straining, or the state of being strained.
n A violent effort; an excessive and hurtful exertion or tension, as of the muscles.
n An injury resulting from violent effort; a sprain.
n (uncountable)(engineering) The amount by which a material deforms under stress or force, given as a ratio of the deformation to the initial dimension of the material and typically symbolised by ε is termed the engineering strain. The true strain is defined as the natural logarithm of the ratio of the final dimension to the initial dimension.