mean

1 mean /ˈmiːn/ verb
means; meant /ˈmɛnt/ ; meaning
1 mean
/ˈmiːn/
verb
means; meant /ˈmɛnt/ ; meaning
Britannica Dictionary definition of MEAN
1 
not used in progressive tenses, [+ object] : to have (a particular meaning)
2 
not used in progressive tenses, [+ object] : to want or intend to express (a particular idea or meaning)
3 
[+ object] : to have (something) in your mind as a purpose or goal
— often followed by to + verb
4 
not used in progressive tenses
a  : to plan for or want (someone or something) to do or to be something
[+ object]
— often + as — often followed by to + verb
[no object]
(chiefly US) — + for
b  [+ object] : to want (something that you control, provide, or have made) to be used for a particular purpose or by a particular person — often + for
— often followed by to + verb — sometimes + as
5 
not used in progressive tenses, [+ object] : to make a statement to or about (someone)
6 
not used in progressive tenses [+ object]
a  : to indicate or show (something that is going to happen)
b  : to cause or result in (something)
c  : to involve or require (something) as a necessary part
7 
not used in progressive tenses, [+ object] — used to say or ask how important something is to someone — usually + to

I mean

informal
1 
— used to emphasize a statement
2 
— used to correct a previous statement
3 
— used when you are unsure of what to say or how to say it

know what it means

: to understand what it is like to do or be something — usually used in negative statements — sometimes used in an exaggerated way to make a forceful statement

mean business

— see business

meant for (someone)

informal
: perfectly suited for (someone)
— see also 1mean 4b (above)

meant to be/do something

1 
: intended to do or be something
2 
British : supposed to be or do something

mean well

: to want to do good or helpful things : to have good intentions — see also well-meaning
2 mean /ˈmiːn/ adjective
meaner; meanest
2 mean
/ˈmiːn/
adjective
meaner; meanest
Britannica Dictionary definition of MEAN
[also more mean; most mean]
1 
somewhat informal
a  : not kind to people : cruel or harsh
2 
chiefly British : not liking to spend money : stingy, cheap
3 
old-fashioned + literary : of poor quality or status
4 
chiefly US, informal : excellent or impressive

no mean

informal
— used to say that something is good or impressive

— meanly

/ˈmiːnli/ adverb

— meanness

/ˈmiːnnəs/ noun [noncount]
3 mean /ˈmiːn/ adjective
3 mean
/ˈmiːn/
adjective
Britannica Dictionary definition of MEAN
always used before a noun
: occurring exactly between the highest and lowest number : average
4 mean /ˈmiːn/ noun
plural means
4 mean
/ˈmiːn/
noun
plural means
Britannica Dictionary definition of MEAN
[count]
1 
: 1average 1
2 
: a middle point between two things