old

1.be… years, months, etc. ~具体年龄；（多少）岁；年纪of a particular age

The baby was only a few hours old.婴儿才出生几个小时。

In those days most people left school when they were only fifteen years old.那时候，大多数人上学只上到十五岁。

At thirty years old, he was already earning £40 000 a year.他三十岁时已拿到 4 万英镑的年薪了。

two fourteen-year-old boys两个十四岁的男孩

a class for five-year-olds(= children who are five)为五岁儿童开的班

I didn't think she was old enough for the responsibility.我认为她尚年轻，不足以担当此任。

How old is this building?这座建筑已有多少年了？

He's the oldest player in the team.他是队里年龄最大的队员。

She's much older than me.她的年龄比我大得多。

2.老的；年纪大的；不年轻的having lived for a long time; no longer young

to get/grow old上年纪

The old man lay propped up on cushions.老人靠在垫子上躺着。

She was a woman grown old before her time(= who looked older than she was) .她显得未老先衰。

3.存在（或使用）时间长的；陈旧的；古老的having existed or been used for a long time

old habits旧习惯

He always gives the same old excuses.他总是重复那些老掉牙的借口。

This carpet's getting pretty old now.这块地毯现在已经很旧了。

4.[obn]过去的；从前的former; belonging to past times or a past time in your life

Things were different in the old days .从前的情况可不一样。

I went back to visit my old school.我重访了母校。

Old and Middle English古英语和中古英语

5.[obn]（用于指称被替代的东西） 原来的，原先的used to refer to sth that has been replaced by sth else

We had more room in our old house.我们原先的房子比较宽敞。

6.[obn]相识时间长的；结识久的known for a long time

She's an old friend of mine(= I have known her for a long time) .她是我的一个老朋友。

We're old rivals.我们是老对头。

7.[obn](informal)（表示亲昵或不拘礼节）used to show affection or a lack of respect

Good old Dad!可爱的老爸！

You poor old thing!你这可怜的家伙！

I hate her, the silly old cow!我恨她，那个笨蛋老女人！

1.[pl]老年人old people

The old feel the cold more than the young.老年人比年轻人怕冷。