1. (verb) allow to remain in a place or position or maintain a property or feature

• continue
• keep
• keep on

2. (verb) secure and keep for possible future use or application

• hold
• hold back
• keep back

1. (verb) hold back within

• bear
• carry
• contain
• hold

2. (verb) allow to remain in a place or position or maintain a property or feature

• keep up
• prolong
• sustain

3. (verb) secure and keep for possible future use or application

• hold on
• keep

4. (verb) keep in one's mind

• remember
• think of

1. (verb) secure and keep for possible future use or application

• hold down

1. (verb) hold back within

• long
• recollective
• retentive
• tenacious

2. (verb) allow to remain in a place or position or maintain a property or feature

• continuation
• lengthiness
• prolongation
• protraction

3. (verb) secure and keep for possible future use or application

• holding
• holding
• keeping
• keeping
• retention
• retention

4. (verb) keep in one's mind

• long
• recollective
• retentive
• tenacious
• memory
• retention
• retentiveness
• retentivity