letter

As nouns the difference between optic and letter

is that optic is an eye while letter is a symbol in an alphabet.

As an adjective optic

is of, or relating to the eye or to vision.

As a verb letter is

to print, inscribe, or paint letters on something.

In transitive terms the difference between notice and letter

is that notice is to detect; to perceive with the mind while letter is to print, inscribe, or paint letters on something.

As nouns the difference between sms and letter

is that sms is a text message sent on a cell phone while letter is a symbol in an alphabet.

As verbs the difference between sms and letter

is that sms is to send a message on a cell phone while letter is to print, inscribe, or paint letters on something.

As an initialism SMS

is short Message Service, a service for sending text messages on a cellular telephone system.

Shortmessage is likely misspelled.

Shortmessage has no English definition.

As a noun letter is

a symbol in an alphabet.

As a verb letter is

to print, inscribe, or paint letters on something.

As a noun letter

is a letter (character).

As a proper noun sound is

the strait that separates zealand (an island of denmark) from scania (part of sweden); also sometimes called by the danish name,.

As a noun letter is

a letter (character).

As nouns the difference between circular and letter

is that circular is a printed advertisement, directive, or notice intended for mass distribution; a flyer while letter is a letter (character).

As an adjective circular

is of or relating to a circle.

Cicullar is likely misspelled.

Cicullar has no English definition.

As a noun letter

is a symbol in an alphabet.

As a verb letter

is to print, inscribe, or paint letters on something.