sightˈline noun

1. The line from the eye to the perceived object
2. (in pl) the view afforded, eg of the stage in a theatre or the screen in a cinema

sightˈ-player, -reader, -singer noun

Someone who can read or perform music at first sight of the notes

sightˈ-playing, -reading, -singing noun

sightˈ-read intransitive verb and transitive verb

sightˈ-sing intransitive verb and transitive verb

sight screen noun (cricket)

A large (usu white) screen placed on the boundary behind the bowler, providing a backdrop against which the batsman can more easily see the approaching ball

sightˈsee intransitive verb

To go about visiting sights, buildings, etc of interest

sightˈseeing noun

sightˈseer /-sē-ər/ noun

sightsˈman noun

A local guide, cicerone

at first sight

When seen initially and without the benefit of a detailed study or investigation

at or on sight

1. Without previous view or study
2. As soon as seen
3. On presentation
4. (of a bill, draft, etc, payable) as soon as presented

at so many days' sight

(of a bill, draft, etc, payable) so many days after it is presented

catch sight of

To get a glimpse of, begin to see

in sight

1. Within view, visible
2. (also within sight; with of) in a position to see, or be seen from or by
3. Close at hand, expected soon

keep sight of or keep in sight

1. To keep within seeing distance of
2. To remain in touch with

know by sight

To recognize or be familiar with by appearance

lose sight of

1. To cease to see
2. To get out of touch with

out of sight

1. (with of) not in a position to be seen (from or by) or to see
2. Out of range of vision
3. Not visible, hidden
4. Beyond comparison, marvellous (informal)

put out of sight

1. To remove from view
2. To eat or drink up (slang)

raise (or lower) one's sights

To set oneself a more (or less) ambitious target

set one's sights on

To aim for (eg a specified goal)

sight for sore eyes

A most welcome sight

sight unseen

Without having seen the object in question