The difference between Dot and Speck

When used as nouns, dot means a small spot, whereas speck means a tiny spot, especially of dirt etc.

When used as verbs, dot means to cover with small spots (of some liquid), whereas speck means to mark with specks.

Dot is also preposition with the meaning: dot product of the previous vector and the following vector.

check bellow for the other definitions of Dot and Speck

Dot as a noun:

A small spot.

Examples:

"a dot of colour"
Dot as a noun (grammar):

A punctuation mark used to indicate the end of a sentence or an abbreviated part of a word; a full stop; a period.
Dot as a noun:

A point used as a diacritical mark above or below various letters of the Latin script, as in Ȧ, Ạ, Ḅ, Ḃ, Ċ.
Dot as a noun (mathematics):

A symbol used for separating the fractional part of a decimal number from the whole part, for indicating multiplication or a scalar product, or for various other purposes.
Dot as a noun:

One of the two symbols used in Morse code.
Dot as a noun (obsolete):

A lump or clot.
Dot as a noun:

Anything small and like a speck comparatively; a small portion or specimen.

Examples:

"a dot of a child"
Dot as a noun (cricket, informal):

A dot ball.
Dot as a noun (MLE):

buckshot, projectile of a dotty

Dot as a verb (transitive):

To cover with small spots (of some liquid).

Examples:

"His jacket was dotted with splashes of paint."
Dot as a verb (transitive):

To add a dot (the symbol) or dots to.

Examples:

"'Dot your ''i''s and cross your ''t''s."
Dot as a verb:

To mark by means of dots or small spots.

Examples:

"to dot a line"
Dot as a verb:

To mark or diversify with small detached objects.

Examples:

"to dot a landscape with cottages"
Dot as a verb (colloquial):

To punch (a person).

Dot as a preposition:

Dot product of the previous vector and the following vector.

Examples:

"The [[work]] is equal to F dot Δx."

Speck as a noun:

A tiny spot, especially of dirt etc.

Examples:

"a tiny speck of soot"
Speck as a noun:

A very small thing; a particle; a whit.

Examples:

"synonyms: Thesaurus:modicum"

"He has not a speck of money."
Speck as a noun (fish):

A small etheostomoid fish, , common in the eastern United States.

Speck as a verb (transitive):

To mark with specks; to speckle.

Examples:

"paper specked by impurities in the water used in its manufacture"

Speck as a noun:

Fat; lard; fat meat.
Speck as a noun (uncountable):

A juniper-flavoured ham originally from Tyrol.
Speck as a noun:

The blubber of whales or other marine mammals.
Speck as a noun:

The fat of the hippopotamus.