estrecharse znamená v Angličtina

narrow [narrowed, narrowing, narrows]▼(to get narrower)
verb
[UK: ˈnæ.rəʊ] [US: ˈnero.ʊ]

taper [tapered, tapering, tapers]▼(to diminish gradually)
verb
[UK: ˈteɪ.pə(r)] [US: ˈteɪ.pər]