n.
1.(Greek mythology) monster with nine heads
2.a long faint constellation in the southern hemisphere near the equator stretching between Virgo and Cancer
3.trouble that cannot be overcome by a single effort because of its many aspects or its persistent and pervasive quality
4.small tubular solitary freshwater hydrozoan polyp
Idiom of the Day
pull a gun/knife on (someone)
to bring out a gun or knife quickly so that you can use it against someone
The robber pulled a knife on the woman in the street.