Here is the full list of all 42 Lingo achievements.
The base game contains 26 achievements, and there are 2 DLC packs containing 16 achievements.
The Master
The Optimistic
The Bearer
The Tenacious
The Colorful
The Wise
The Perceptive
The Wondrous
The Steady
The Initiated
The Discerning
The Bold
The Observant
The Seeker
The Traveled
The Agreeable
The Undeterred