The best replacement for decoding is encoding.

The best alternatives to decoding are rated as following:
★★★★★  encoding
★★★  comprehension
★  encoding communication
★  phonics
  full decoding
  hardware
  blending
  word analysis
  word recognition
  fluency
  phonological awareness
  software decoding
  word reading

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Speaking about decoding, one probably shouldn't forget about dsd.

Other search terms related to decoding and their ratings are:
★★★★★ dsd
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decoding
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