Basic electronics related full forms

AM - Amplitude modulation
FM - Frequency modulation
PM - Phase modulation
HWR - Half wave rectifier
FWR - Full wave rectifier
LED - Light emitting diode
CRO - Cathode ray oscilloscope
BJT - Bipolar junction transistor
JFET - Junction field effect transistor
MOSFET - Metal oxide semiconductor field effect transistor
CB - Common base
CE - Common emitter
CC - Common collector
AF - Audio frequency
RF - Radio-frequency 
CTR - Cathode ray tube
DSP - Digital signal processor 
FET - Field effect transistor
IC - Integrated circuit
JFET - Junction gate field effect transistor
LCD - Liquid crystal display
LDR - Light dependent resistor
LED - Light emitting diode
D - Diode
L - Inductor
Q - Transistor
R -  Resistor
RLA - Relay
SW - Switch
T- Transformer
TH - Thermistor
Tr - Transistor
IC - Integrated circuit
VC - Variable capacitor
VR - Variable resistor