viewpoint /ˈvjuːpɔɪnt/ /ˈvjuːpɔɪnt/
point of view /ˌpɔɪn.t̬əvˈvjuː/ /ˌpɔɪnt əv ˈvjuː/
outlook /ˈaʊtlʊk/ /ˈaʊtlʊk/
perspective /pərˈspektɪv/ /pəˈspektɪv/