Sentence:  Thus Burns 's `` My love is like a red , red rose '' and Hopkins ' `` The thunder-purple sea beach , plumed purple of <WSD>thunder</WSD> '' although clearly intelligible in content , hardly present ideas of the sort with which we are here concerned . 
Meaning of the word marked with <WSD> tags:  a booming or crashing noise caused by air expanding along the path of a bolt of lightning