1. periods when something becomes smaller, weaker, or worse
Usage: plural form

1. refuses politely to accept or do something
Usage: third person singular present
2. becomes smaller, fewer, or weaker
Usage: third person singular present
3. becomes worse in quality or condition
Usage: third person singular present

Examples

• She declines all invitations to parties.
• The population declines every year in rural areas.
• His health declines rapidly after the surgery.
• The company’s profits show steep declines this quarter.
• He politely declines the job offer.
• The economy declines during recessions.
• The report documents declines in student test scores.