diff --git a/data/dicts/aviation.csv b/data/dicts/aviation.csv
index 7065d17a..691b7164 100644
--- a/data/dicts/aviation.csv
+++ b/data/dicts/aviation.csv
@@ -312,6 +312,7 @@ FOD,Foreign Object Debris
 FOV,Field of View
 FWC,Flight Warning Computer
 GA,"General Aviation, Go Around (VFR)"
+GAF,German Air Force
 GND,Ground
 GP,Glide Path
 GPS,Global Positioning System
@@ -442,6 +443,7 @@ RNAV,Area Navigation
 RNP,Required Navigation Performance
 ROC,Rate Of Climb
 ROC,Required Obstacle Clearance
+ROKAF,Republic of Korea Air Force
 RPS,Radar Position Symbol
 RRPM,Rotor Rotations per Minute
 RSA,Runway Safety Area
diff --git a/data/dicts/chemistry.csv b/data/dicts/chemistry.csv
index f3b20f1b..732b734b 100644
--- a/data/dicts/chemistry.csv
+++ b/data/dicts/chemistry.csv
@@ -316,17 +316,14 @@ G,Gibbs Free Energy
 G,"Giga prefix (109)"
 G,"Glycine g,gram"
 G,Guanosine
-Ga,Gallium
-Ga,Gauge
+Ga,Gallium or Gauge
+GaF,"Gallium(I)-fluorid"
 GABA,Gamma-AminoButyric Acid
 GAD,Glutamate Decarboxylase
 GAG,Glycosaminoglycan
 GBB,Gas Blow Back
 GC,Geiger Counter
-GCC,Global Carbon Cycle
-GCC,Global Climate Change
-GCC,Glucocorticoid
-GCC,Guanylyl Cyclase C
+GCC,"Global Carbon Cycle, Global Climate Change, Glucocorticoid, or: Guanylyl Cyclase C"
 GCMS,Gas Chromatographic Mass Spectrometer
 Gd,Gadolinium
 GDP,Guanosine DiPhosphate