noun
two or three days; a couple of days
Used to indicate an approximate duration or time frame of two to three days. Common in both spoken and written Japanese.
両三日ほどお待ちください。
Please wait for about two or three days.
彼は両三日のうちに戻るでしょう。
He will probably be back in a couple of days.
Compound of 両 (ryō, 'both' or 'two') and 三日 (mikka, 'three days'), with the reading さんにち for 三日. The combination expresses an approximate span of two to three days.