| listen secretly |
| listener |
| listening |
| lurk |
| make out(verb, expression, take, get, catch) |
| mind(verb, get, accept, observe, admit) |
| obey(verb, get, accept, observe, admit) |
| observe(verb, get, accept, admit, attend) |
| pay attention(expression, idiom, get, attend, heed) |
| pick up(verb, expression, take, get, catch) |
| pick up on(expression, idiom, get, accept, observe) |
| prick up ears(expression, idiom, get, accept, observe) |
| read(verb, take, get, catch, attend) |
| receive(verb, get, accept, observe, admit) |
| sit in on(expression, idiom) |
| spy on(verb, expression, tap) |
| strain(verb, take, get, catch, attend) |
| take(get, hear, earwig) |
| take advice(verb, expression, get, accept, observe) |
| take in(verb, expression, get, catch, attend) |