Definitions
1.VerbTo examine sequentially, carefully, or critically; to scrutinize; to behold closely. .mw-parser-output .defdate{font-size:smaller}"She scanned the passage carefully but could not find what she was looking for.; He scanned the horizon.; to scan the hard drive for errors"
2.VerbTo inspect, analyse or go over, often to find something."to scan the hard drive for errors"
3.VerbTo look about for; to look over quickly.
To perform lexical analysis; to tokenize.
4.VerbTo perform lexical analysis; to tokenize.
5.VerbTo create an image of something with the use of a scanner."to scan a photograph; to scan internal organs by means of computed tomography; Pencil drawings don't scan very well."
6.VerbTo read with an electronic device."to scan a barcode; to scan a QR code"
7.VerbTo mount by steps; to go through with step by step.
8.VerbTo read or mark so as to show a specific metre.
9.VerbTo conform to a metrical structure.
10.NounA close investigation.
Of written things, a careful reading.
11.NounOf written things, a careful reading.
12.NounOf written things, a cursory reading: a skim.
13.NounAn instance of scanning."The operators vacated the room during the scan."
14.NounThe result or output of a scanning process."The doctors looked at the scans and made a diagnosis."
15.NounA higher-order function that applies a binary operation to a sequence of values, starting with an accumulator, and returns a new sequence with the results.