addition

noun 0.765

additional

noun 0.714

additive

noun 0.660

superadditivity

noun 0.636

addendum

noun 0.632

addition reaction

noun 0.619

add-on

noun 0.614

adjunctive

noun 0.606

value added

noun 0.605

admixture

noun 0.578

add

noun 0.576

adduct

noun 0.568

adjunct

noun 0.560

addend

noun 0.556

extra

noun 0.554

added time

noun 0.553

supplementary

noun 0.552

supplement

noun 0.552

supplemental

noun 0.550

photoaddition

noun 0.549

plus

noun 0.545

addition polymerization

noun 0.543

adjuvant

noun 0.542

suppletion

noun 0.540

bonus

noun 0.539

polyaddition

noun 0.537

adduction

noun 0.535

additive identity

noun 0.533

supplementation

noun 0.529

value-added service

noun 0.519

enhancement

noun 0.516

extraneousness

noun 0.507

augmentation

noun 0.504

alternativeness

noun 0.504

adder

noun 0.503

admix

noun 0.503

contribution

noun 0.502