答案肯定不是的。下面我们略举几例：
老兵, a veteran
John is a veteran.
老朋友(铁哥们)，a fast friend
Joe has been a fast friend of mine for ages.
老人，an elder,
It is hard for the elders to accept modern concepts
老教师，a teacher/an expert teacher
As an expert teacher, Lao Li always tries his best to impart knowledge and educate his students.
老干部，a senior leader/cadre
The retired senior cadre is sometimes invited to give lectures to help young cadres with their administrative affairs.
老手，an adept
Jack is considered as an adept at French in our office.
老板，a boss
Can you describe your ideal boss?
老糊涂，a dotard
Jimmy was no drivelling dotard, but a smart, upright, handsome old man.
老字号，a time-honored brand
Time-honored brands refer to stores that established for a long time and handled with special products.
老企业，a long-established enterprise
An long-established entreprise in southern China is helping a fledgling business on its journey to sweet success by supporting the firm to branch out into new premises.
via 郑新民谈英语教学与研究
