1. busy, occupy

keep busy with

Example Sentences:
'She busies herself with her butterfly collection'

• occupy

2. busy

actively or fully engaged or occupied

Example Sentences:
'busy with her work'
'a busy man'
'too busy to eat lunch'

• at work
• drudging
• laboring
• labouring
• toiling
• engaged
• occupied
• overbusy
• tied up
• up to

3. busy, fussy

overcrowded or cluttered with detail

Example Sentences:
'a busy painting'
'a fussy design'

• fussy

4. busy, busybodied, interfering, meddlesome, meddling, officious

intrusive in a meddling or offensive manner

Example Sentences:
'an interfering old woman'
'bustling about self-importantly making an officious nuisance of himself'
'busy about other people's business'

• busybodied
• interfering
• meddlesome
• meddling
• officious

5. busy

crowded with or characterized by much activity

Example Sentences:
'a very busy week'
'a busy life'
'a busy street'
'a busy seaport'

6. busy, engaged, in use

(of facilities such as telephones or lavatories) unavailable for use by anyone else or indicating unavailability; (engaged' is a British term for a busy telephone line)

Example Sentences:
'her line is busy'
'receptionists' telephones are always engaged'
'the lavatory is in use'
'kept getting a busy signal'

• engaged
• in use