v.t./i.動詞 (及物/不及物)狂笑；大笑If my uncle hears a good joke, he will roar with laughter
n. (c./u.)名詞 (可數/不可數)大笑聲I hear the roar of the crowd when she says something funny
v.t./i.動詞 (及物/不及物)大吼If you roar at her she will be afraid
n. (c./u.)名詞 (可數/不可數)呼喊；吼叫Your roar brought me to you
v.t./i.動詞 (及物/不及物)咆哮The baby will roar until he is fed
n. (c./u.)名詞 (可數/不可數)吼叫；呼嘯；咆哮The roar of a lion can be heard over a great distance
v.i.不及物動詞吼叫；咆哮The lion tossed its head back to roar at the crowd