1. (noun) a gradual decline (in size or strength or power or number)

• ebb
• ebbing

2. (verb) grow smaller

• decline
• go down

1. (noun) a gradual decline (in size or strength or power or number)

• decline
• diminution

2. (verb) grow smaller

• decrease
• diminish
• fall
• lessen

3. (verb) become smaller

• decrease
• diminish
• fall
• lessen

4. (verb) decrease in phase

• decrease
• diminish
• fall
• lessen

1. (verb) grow smaller

• dip
• drop
• wear on

1. (verb) become smaller

• climb
• mount
• rise
• wax

2. (verb) decrease in phase

• full
• wax

1. (noun) a gradual decline (in size or strength or power or number)

• decline
• go down
• ebb
• ebb

2. (verb) grow smaller

• decline
• diminution
• ebb
• ebbing
• waning

3. (verb) become smaller

• waning

4. (verb) decrease in phase

• ebb
• ebbing
• waning