From Japanese-English FreeDict Dictionary ver. 0.1:
[ichi1] [news2] [nf42] 筈, 弭, [ichi1] [news2] [nf42] はず
1. (noun (common) (futsuumeishi))
Note: word usually written using kana aloneexpectation that something took place, will take place or was in some state, it should be so, bound to be, expected to be, must be
2. nock (of a bow)
3. nock (of an arrow)
4. はず押し・はずおし [sumo term] nock-shaped grip (between thumb and forefinger)
5. wooden frame on the tip of the mast of a Japanese ship that prevents the hawser from falling out