...

• certainly
  يقينا
  altro ...
• sure {ly}
  يقينا
  altro ...
• positively {med.}
  يَقينا {طب}
  altro ...
• for sure
  يقينا
  altro ...

Adverb

• surely
  يقينا
  altro ...
• undoubtedly
  يقينا
  altro ...
• verily
  يقينا
  altro ...
• assuredly
  يقينا
  altro ...

Verb

• to be absolutely
  يقينا
  altro ...
• to be sure
  يقينا
  altro ...
• to be assuredly
  يقينا
  altro ...
• to be positively
  يقينا
  altro ...
• to be definitely
  يقينا
  altro ...
• to be of course
  يقينا
  altro ...
• to be undoubtedly
  يقينا
  altro ...
• to be doubtless
  يقينا
  altro ...
• to be without doubt
  يقينا
  altro ...
• to be unquestionably
  يقينا
  altro ...
• to be indubitably
  يقينا
  altro ...