| verb | catch sight of |
| verb | detect with the senses “The fleeing convicts were picked out of the darkness by the watchful prison guards” |
| verb | mar or impair with a flaw “her face was blemished” |
| verb | make a spot or mark onto “The wine spotted the tablecloth” |
| verb | become spotted “This dress spots quickly” |
| verb | mark with a spot or spots so as to allow easy recognition “spot the areas that one should clearly identify” |
| adjective | having spots or patches (small areas of contrasting color or texture) “a field patched with ice and snow” |
| spotter | noun | a person employed to keep watch for some anticipated event |
| spotting | noun | the act of detecting something; catching sight of something |
| espial | noun | the act of detecting something; catching sight of something |
| spying | noun | the act of detecting something; catching sight of something |
| discernible | adjective | capable of being perceived clearly |
| discernment | noun | perception of that which is obscure |
| blemish | noun | a mark or flaw that spoils the appearance of something (especially on a person's body) |
| spot | noun | a blemish made by dirt |
| fleck | noun | a small contrasting part of something |
| blob | noun | an indistinct shapeless form |
| blot | noun | a blemish made by dirt |