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