Tiiru (Tiir)

1) Rifle range; 2) Gland; 3) Colic or gripes; 4) Round, circle, twirl; 5) Alternative genitive for the tern or sea swallow. Given the street was thus named during the wartime year of 1940, when it replaced that of Kaitseliidu, Defense League (see Maleva), I’d tend to opt for 1.