im-

Collins Concise English Dictionary © HarperCollins Publishers::

im- prefix

1. a variant of in-1,

WordReference Random House Learner's Dictionary of American English © 2025

I'm, 

1. contraction of I am:
   I'm here. I'm hungry.

im- ,prefix. 

1. im- is another form of in-² that is attached to roots beginning with p, b, and m;
   it means "not:''
   im- + possible → impossible (= not possible).

im- ,prefix. 

1. im- is another form of in-¹ that is attached to roots beginning with p, b, and m;
   it means "in, into:''
   im- + -migrate → immigrate (= travel into).

WordReference Random House Unabridged Dictionary of American English © 2025

I'm  (īm), 

1. Pronouns contraction of
   I am.

Usage

See contraction. 

im-,¹ 

1. var. of in- ² before b, m, p: imbrute;
   immigrate;
   impassion.

im-,² 

1. var. of in- ³ before b, m, p: imbalance;
   immoral;
   imperishable.

im-,³ 

1. var. of in- ¹ before b, m, p: imbed;
   immure;
   impose.

-im, 

1. a plural ending occurring in loanwords from Hebrew:
   cherubim.

• Hebrew

I.M., 

1. Place Names Isle of Man.

Collins Concise English Dictionary © HarperCollins Publishers::

in-, il-, im-, ir- prefix

1. not; non-: incredible, insincere, illegal, imperfect, irregular
   Compare un-1

Etymology: from Latin in-; related to ne-, nōn not

in-, il-, im-, ir- prefix

1. in; into; towards; within; on: infiltrate, immigrate
2. having an intensive or causative function: inflame, imperil

Etymology: from in (prep, adv)