Frequency: The word is one of the 1500 most common words in English.
If something is ~, it is able or likely to hurt or harm you.
It’s a ~ stretch of road.
...~ drugs...
It’s ~ to jump to early conclusions.
= unsafe
ADJ: oft it v-link ADJ to-inf
~ly
He is ~ly ill...
The coach rocked ~ly.
ADV: usu ADV adj/adv/-ed, also ADV after v