A relatively small number of words of the same morphological structure differ in the position of word stress. In this case the opposition of accentual structures differentiates the meaning. The shifting of word stress may or may not cause changes in the sound quality or quantity, eg: accent (n) ['æksәnt], accent (v) [æk'sent] or [әk'sent]. The opposition of the primary stress is capable of differentiating the parts of speech, eg: Noun/Adjective: combine [ꞌkɒmbain],conduct ['kɒndәkt],export [ꞌekspɔ:t] Verb:combine [kәmꞌbain],conduct [kәnꞌdʌkt],export [eksꞌpɔ:t] Similar examples may be found in Russian: здорово (наречие) and здорoво! (междометие). The actual meaning of some words may be differentiated in the same way, eg: artist [ꞌa:tıst] (a painter) but artiste [a:'ti:st] (a person skilful at doing something), or in Russian молодeц but молодец. The opposition of the second primary stress to the absence of stress is also distinctive, eg: recover [ꞌri:ꞌkʌvә] (cover again) [rıꞌkʌvә] (become well again), restrain (v) [ꞌri:'strein] (strain again) [rı'strein] (hold back) The secondary stress opposed to the primary stress in a few exceptional cases differentiates the meaning too, eg: recreation ['ri:krıꞌeiʃn] (creating anew) [ˎrekrı'eiʃn] (refreshment, amusement)
