The difference between Delay and Suspend

When used as verbs, delay means to put off until a later time, whereas suspend means to halt something temporarily.

Delay is also noun with the meaning: a period of time before an event occurs.

check bellow for the other definitions of Delay and Suspend

Delay as a noun:

A period of time before an event occurs; the act of delaying; procrastination; lingering inactivity.

Examples:

"the delay before the echo of a sound"
Delay as a noun (music):

An audio effects unit that introduces a controlled delay.

Delay as a verb:

To put off until a later time; to defer.
Delay as a verb:

To retard; to stop, detain, or hinder, for a time.

Examples:

"The mail is delayed by a heavy fall of snow."
Delay as a verb (obsolete):

To allay; to temper.

Suspend as a verb:

To halt something temporarily.

Examples:

"The meeting was suspended for lunch."
Suspend as a verb:

To hold in an undetermined or undecided state.

Examples:

"to suspend one's judgement or one's disbelief"

"rfquotek John Locke"
Suspend as a verb:

To discontinue or interrupt a function, task, position, or event.

Examples:

"to suspend a thread of execution in a computer program"
Suspend as a verb:

To hang freely; underhang.

Examples:

"to suspend a ball by a thread"
Suspend as a verb:

To bring a solid substance, usually in powder form, into suspension in a liquid.
Suspend as a verb (obsolete):

To make to depend.
Suspend as a verb:

To debar, or cause to withdraw temporarily, from any privilege, from the execution of an office, from the enjoyment of income, etc.

Examples:

"to suspend a student from college; to suspend a member of a club"
Suspend as a verb (chemistry):

To support in a liquid, as an insoluble powder, by stirring, to facilitate chemical action.
Suspend as a verb (travel, aviation):

To remove the value of an unused coupon from an air ticket, typically so as to allow continuation of the next sectors' travel.