What is the meaning of Alignment in bengali?

Meaning(s):

1. an organization of people (or countries) involved in a pact or treaty
2. the spatial property possessed by an arrangement or position of things in a straight line or in parallel lines
3. (astronomy) apparent meeting or passing of two or more celestial bodies in the same degree of the zodiac
4. the act of adjusting or aligning the parts of a device in relation to each other
5. एकरेखन The sight of the gun must be in alignment with the target.
6. सम्मिलन = coalition the alignment of Japan with the West
7. सिधाई The sight of the gun must be in alignment with the target.