This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

• Lexulous
• Wordscraper
• Wordosaur

n. An inspection or exploration of an area, especially one made to gather military information.

n. The act of scouting or exploring (especially military or medical) to gain information.

n. An examination or survey of a region in reference to its general geological character.

n. An examination of a region as to its general natural features, preparatory to a more particular survey for the purposes of triangulation, or of determining the location of a public work.

n. An examination of a territory, or of an enemy's position, for the purpose of obtaining information necessary for directing military operations; a preparatory expedition.

n. The act or operation of reconnoitering; preliminary examination or survey.

n. the act of reconnoitring (especially to gain information about an enemy or potential enemy)

"We just got - we just got what we call a reconnaissance plane."

reconnoissance   

intelligence activity    intelligence operation    intelligence   

topographic reconnaissance    reconnaissance in force   

reconnoitre    reconnoiter   

shufti    reconnaissance by fire    reconnoitering    reconnoitring    reccy    air reconnaissance    exploratory survey    scouting    recco    reconnaissance in force   

survey    examination   

surveillance    aviation    patrol    decontamination    recon    evacuation    survey    coördination    liaison    radar