[n] any of numerous plants having stinging hairs that cause skin irritation on contact (especially of the genus Urtica or family Urticaceae)
[v] goad or provoke,as by constant criticism; "He needled her with his sarcastic remarks"
[v] cause annoyance in; disturb, esp. by minor irritations; "Mosquitoes buzzing in my ear really bothers me"; "It irritates me that she never closes the door after she leaves"
annoy, bother, chafe, devil, get at, get to, goad, gravel, irritate, nark, needle, rag, rile, vex