1. genuinely, really, truly

in accordance with truth or fact or reality

Example Sentences:
'she was now truly American'
'a genuinely open society'
'they don't really listen to us'

• genuinely
• truly

2. actually, really

in actual fact

Example Sentences:
'to be nominally but not actually independent'
'no one actually saw the shark'
'large meteorites actually come from the asteroid belt'

• actually

3. in truth, really, truly

in fact (used as intensifiers or sentence modifiers)

Example Sentences:
'in truth, moral decay hastened the decline of the Roman Empire'
'really, you shouldn't have done it'
'a truly awful book'

• in truth
• truly

4. rattling, real, really, very

used as intensifiers; real' is sometimes used informally for really'; rattling' is informal

Example Sentences:
'she was very gifted'
'he played very well'
'a really enjoyable evening'
'I'm real sorry about it'
'a rattling good yarn'

• rattling
• real
• very