nulliparity

noun 0.827

primipara

noun 0.665

multipara

noun 0.620

nullity

noun 0.615

nullah

noun 0.602

null

noun 0.574

nil

noun 0.570

null object

noun 0.564

null set

noun 0.552

nulling

noun 0.549

multiparity

noun 0.544

null pointer

noun 0.542

primigravid

noun 0.534

never-married

noun 0.533

virino

noun 0.533

nill

noun 0.532

none

noun 0.519

childlessness

noun 0.518

nihil

noun 0.518

unmarried

noun 0.514

nop

noun 0.513

negative clause

noun 0.513

null infinity

noun 0.513

noll

noun 0.511

nonmarriage

noun 0.509

innumerate

noun 0.506

nonpartner

noun 0.506

null matrix

noun 0.506

unwed

noun 0.504

nipa

noun 0.503

nonmarried

noun 0.502