widened

As an adjective wide

is having a large physical extent from side to side.

As an adverb wide

is extensively.

As a noun wide

is (cricket) a ball that passes so far from the batsman that the umpire deems it unplayable; the arm signal used by an umpire to signal a wide; the extra run added to the batting side's score.

As a verb widened is

(widen).

As verbs the difference between extended and widened

is that extended is past tense of extend while widened is past tense of widen.

As an adjective extended

is longer in length or extension; elongated.

Thorough is a related term of widened.

As an adjective thorough

is painstaking and careful not to miss or omit any detail.

As a preposition thorough

is (obsolete) through.

As a noun thorough

is (uk|dialect) a furrow between two ridges, to drain off the surface water.

As a verb widened is

(widen).

Widespread is a related term of widened.

As an adjective widespread

is affecting a large area (eg the entire land or body); broad in extent; widely diffused.

As a verb widened is

(widen).

As verbs the difference between widened and expanded

is that widened is past tense of widen while expanded is past tense of expand.

As verbs the difference between widened and enlarged

is that widened is past tense of widen while enlarged is past tense of enlarge.

As verbs the difference between spread and widened

is that spread is to stretch out, open out (a material etc) so that it more fully covers a given area of space while widened is (widen).

As a noun spread

is the act of spreading or something that has been spread.

As a verb widened is

(widen).

Comprehensive is a related term of widened.

As an adjective comprehensive

is .

As a verb widened is

(widen).