Related by context. Frequent words. (Click for all words.) 63 extensive 57 Recent 54 Widespread 53 Ongoing 52 Initial 51 Significant 50 Expanded 50 Increased 49 Numerous 49 Previous 48 Preliminary 48 Improved 48 Further 48 Intense 47 Detailed 46 Robust 44 Massive 43 Continued 42 Multiple 42 Various 42 Similar 41 Specific 41 Continuous 40 thorough 40 Subsequent 39 Immediate 39 Frequent 38 Latest 38 Increasing 38 Huge 38 widespread 37 Findings 37 Evidence 37 Renewed 37 Reduced 36 Additional 36 Improvements 36 Countless 36 Formal 36 minimal 36 undertaken 35 large scale 35 Background 35 Heavy 35 Expanding 35 Mandatory 35 Complete 35 enhanced 35 Proper 35 Ensure 35 exhaustive 34 unparalleled 34 Separate 34 Extended 34 Lack 34 Increases 34 comprehensive 34 Successful 34 Excessive 34 Combining 33 Results 33 Early 33 Aggressive 33 unsurpassed 33 Examples 33 Testing 33 Enhanced 33 numerous 33 continuous 33 Advances 33 considerable 33 Estimated 33 Much 33 systematic 33 Damage 33 Severe 33 Decades 32 Importantly 32 ongoing 32 painstaking 32 Expand 32 Completed 32 Dozens 32 Appropriate 32 Upcoming 32 Demonstrations 32 Comprehensive 32 Interviews 32 intensive 31 Increase 31 analysis 31 Estimates 31 substantial 31 Revised 31 Provide 31 Past 31 Previous studies 31 Delayed 31 Such 31 Regular 31 Dramatic