Definition
advantage
a condition or circumstance that puts one in a favorable or superior position.
contemporary
Mordern/present
hypothesis
a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation
refine
improve
frail
(of a person) weak and delicate.
circumvent
avoid
frigid
very cold in temperature
consolidate
combine/merge/integrate
torrid
very hot and dry
obligatory
mandatory/compulsory