1: θλῖψις
(Strong's #2347 — Noun Feminine — thlipsis — thlip'-sis )

for which see AFFLICATION, B, No. 4, is translated "tribulation" in the RV (for AV, "affiction") in Mark 4:17; 13:19; plural in 2—Thessalonians 1:4 , AV, "tribulations," RV, "afflictions;" in Acts 14:22 "many tribulations" (AV, "much tribulation"); in Matthew 24:9 , "unto tribulation" (AV, "to be afflicted"); in 2—Corinthians 1:4; 7:4; 2—Thessalonians 1:6 , AV, "tribulation" for RV, "affliction;" RV and AV, "tribulation(-s)," e.g., in Romans 2:9; 5:3 (twice); 8:35; 12:12; Ephesians 3:13; Revelation 1:9; 2:9,10,22 .

Revelation 7:14Matthew 24:21,29Mark 13:19,242—Thessalonians 2:10-12Revelation 12:13-17Revelation 7:9Jeremiah 30:7Matthew 24:15Mark 13:14Daniel 11:3112:111—Thessalonians 3:4AFFLICT