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 Wise
The Optimistic
The Initiated
The Bearer
The Colorful
The Wondrous
The Observant
The Perceptive
The Steady
The Undeterred
The Tenacious
The Bold
The Traveled
The Discerning
The Seeker
The Agreeable