Vocabulary and Synonyms

 Assidious means to be constant and perservering which is similar in meaning to attention.

Associate can mean to connect, join, or combine things in thought, relationship, or action. 'Combine' captures this meaning of bringing elements together or linking them.

An assumption is something accepted as true without proof, and a supposition is exactly that - a belief or assumption held without certainty. The other options (attentive, skilled one, aid) are unrelated meanings.

Astute means having or showing keen insight, sharp judgment, or shrewdness. Crafty captures this meaning well - suggesting cleverness and skill, sometimes with a slightly deceptive connotation. The other options (feign, posture, reach) are unrelated.

To assist means to help or aid someone. Aid is a direct synonym meaning help or support. The other options (attentive, supposition, skilled one) are unrelated to helping.

To attain means to achieve, accomplish, or succeed in getting to something. Reach captures this sense of achieving or arriving at a goal. The other options (feign, posture, crafty) are unrelated.

Avarice means extreme greed for wealth or material gain. Greed is the direct synonym. The other options (bold, public, reliable) describe positive or neutral traits, not greed.

Aversion means a strong dislike or disinclination. Antipathy means a deep-seated feeling of dislike or aversion - they are synonyms. The other options (shun, conscious, enlarge) are unrelated.

Avoid means to keep away from or shun something. Shun means to deliberately avoid or keep away from - they are synonyms. The other options (antipathy, conscious, enlarge) are unrelated.

Aware means conscious, alert, or having knowledge of something. Conscious is the direct synonym. The other options (shun, antipathy, enlarge) are unrelated to awareness.

Atypical means not typical, unusual, or abnormal. Unusual is the direct synonym. The other options (quality, combine, courtesy) are unrelated to being non-standard.

'Attitude' in one sense refers to a mental position, manner, or posture. 'Posture' is the correct synonym as it can mean both a physical position and a mental stance. 'Feign' means to pretend, 'crafty' means cunning, and 'reach' means to stretch out - none are valid synonyms.