to discard vs to dismiss vs to disregard

TO DISCARD

[transitive]

1. to get rid of something [= to throw away, to dispose of, to dump, to do away with].
2. to remove someone or something because you no longer want or need them [= to cast aside].

TO DISMISS

[transitive]

1. to refuse to consider someone's idea, opinion, suggestion, etc, because you think it is not important, or serious [= to reject]
2. to remove someone from their job [= to fire, to make redundant, to sack]
3. to order or allow to leave; send away.

TO DISREGARD

[transitive] to ignore something or treat it as unimportant [= to ignore]

Discard Examples

• Fishermen discard a portion of catches of fish, those which are unmarketable species, or individuals which are below minimum landing sizes.
• Cut the tomatoes in half, scoop out and discard the seeds.
• Disk Jockeys are discarding turntables for new equipments.
• Why would a Narcissist keep in touch periodically over one year after the relationship is over if he discarded you and never looked back?

Dismiss Examples

• Bayern Munich dismissed speculation they are about to sign Italian playmaker Andrea Pirlo.
• UK and France dismiss Italy's call for pause in Nato bombing of Libya
• Debt crisis: Angela Merkel dismisses Spain and Italy's pleas for aid.
• The Italian law provides that an employer, wishing to dismiss an employee, must communicate in writing the dismissal and the related reason contextually.
• I was unfairly dismissed from my post.
• Lord, dismiss us with Your blessing.
• The teacher NOT the bell dismisses students.

• Every smart phone has got an alarm clock application. Using the alarm clock app is as simple as using the alarm clock on your bedside table. Upon waking up you would be presented with two selections: 'snooze' and 'dismiss'. Press or hit the dismiss button to stop the alarm.

Disregard Examples

• Hi {username}, Your Facebook password was changed on {date}. If you did this, you can safely disregard this email.