Sırr is interpreted in four senses:
1. The word sırr is used in the sense of cold / intense cold, as in the following verses:
A wind in which there is a sırr (that is, cold, intense cold) struck the crops of a people who wronged themselves... (Āl ʿImrān 3:117)
We sent upon them a sarsar (that is, an intensely cold wind) {-this is al-dabūr-}. (Fussilat 41:16)
A similar usage is found in the surahs al-Ḥāqqa and al-Qamar.
2. The term sırr is used in the sense of persistence in sin (zenb), that is, to continue and persist in it, as in the following verses:
Those who, when they commit an immoral act or wrong themselves... they do not persist knowingly in what they have done {that is, they—the people of tawhid (the oneness of God)—do not persist in the sin they have committed}. (Āl ʿImrān 3:135)
They used to persist in the great sin {that is, they continued in that zenb / sin—the intent here is shirk (associating partners with God)}. (al-Wāqiʿa 56:46)
They persisted {that is, they continued in shirk} and were arrogant {that is, they became increasingly arrogant}. (Nūḥ 71:7)
3. The word sarre is used in the sense of a cry [shout, scream], as in the following verse:
So his wife advanced in a sarre {that is, with a cry / letting out a scream} and struck her face... (al-Dhāriyāt 51:29)
4. The word sırr is used in the sense of tearing, breaking apart, or cutting, as in the following verse:
Make them sırr for yourself {that is, tear them apart}! (al-Baqara 2:260)