Definitions
1.nounThe buttocks or more specifically, the anus.
2.nounA stupid, mean or despicable person.
3.verbTo be silly, act stupid or mess around."Stop arsing around!"
4.nounThe stronger part of a musical measure: the part containing the beat.
5.nounThe stronger part of a metrical foot: the part containing the long (heavy) syllable in quantitative meter, or the stressed syllable in a qualitative meter.
6.nounThe elevation of the hand, or that part of the bar at which it is raised, in beating time; the weak or unaccented part of the bar, opposed to the thesis.
7.nounThe elevation of the voice to a higher pitch in speaking.