1.lion的基本意思是“狮子”,引申可指像狮子般健壮或像狮子一样怒吼的人。
2.lion指“雄狮”,与之对应的阴性名词是lioness。

the lion's share of
最大或最好的一份 the largest or best part of sth when it is divided
As usual, the lion's share of the budget is for defence.预算中的最大的一项照例是国防开支。

He shot a lion with his rifle.他用步枪打死一头狮子。
The wounded lion suddenly charged at me.受伤的狮子突然向我冲了过来。
The lion is called the king of beasts.狮子号称兽中之王。
The lion was roaring triumphantly.狮子正在发出胜利的吼叫。
He is as brave as a lion.他勇如雄狮。
His wife is a lion at home, a mouse abroad.他老婆在家如狮子,在外似老鼠。

习语lion's share源于伊索寓言,狮子在其他野兽帮助下咬死一只熊,但它要求四分之三熊肉,其他野兽害怕它,索性把余下的四分之一也给了它。

［词源］  ＜古法语 ＜拉丁语leo ＜希腊语leon(狮)