ahead

As an adverb ahead

is in or to the front; in advance; onward.

As an adjective serious is

without humor or expression of happiness; grave in manner or disposition; earnest; thoughtful; solemn.

As an adverb ahead

is in or to the front; in advance; onward.

As a verb proceed is

to move, pass, or go forward or onward; to advance; to continue or renew motion begun.

As an adverb ahead

is in or to the front; in advance; onward.

As a noun leads is

.

As a verb leads is

(lead).

As a verb preempt

is (nonstandard).

As an adverb ahead is

in or to the front; in advance; onward.

As adverbs the difference between earlier and ahead

is that earlier is (early) while ahead is in or to the front; in advance; onward.

As an adjective earlier

is (early).

As an adjective preset

is set in advance, or as a default.

As a verb preset

is to set something in advance.

As an adverb ahead is

in or to the front; in advance; onward.

As a noun forefront

is the leading position or edge.

As an adverb ahead is

in or to the front; in advance; onward.