(firearms) The distance between the front and rear sights of a firearm.

(firearms) On some rifles, a type of sight where the shooter looks through a small aperture on the rear sight.

myopic; unable to see distant objects unaided

(literally) Not accessible to view. / (idiomatic, of a goal, aspiration, etc) Not yet attainable. / (dated, idiomatic, colloquial) Superb, excellent. / (idiomatic, colloquial) Very expensive.

The extent to which something matters; importance / Meaning.

In a significant manner or to a significant extent.

A courtesy title for an unmarried woman of Italian origin. / (US) maitake, hen of the woods (mushroom)

Mrs; madam; title of address or respect for women in Italy.

The symbol '/' used in the United Kingdom before decimalisation to separate shillings from pence when writing out sums of money. (Examples: 7/6 = seven shillings and six pence; 7/- = seven shillings exactly.)

(idiomatic) Not having seen the object beforehand.