Syllable division derived from spelling — this word is not in the pronouncing dictionary, so no phonetic transcription is shown rather than a guessed one.
pb is a noun meaning "a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull grey". It carries 4 recorded senses.
a soft heavy toxic malleable metallic element; bluish white when freshly cut but tarnishes readily to dull grey
“the children were playing with lead soldiers”
a unit of information equal to 1000 terabits or 10^15 bits
a unit of information equal to 1000 terabytes or 10^15 bytes
Forms marked · are formed by the regular rule rather than recorded in the source data. English keeps a few hundred irregulars and the rest follow the pattern, so the rule is right far more often than not — but it is a rule, and the mark says so.
Definitions, synonyms and semantic relations for pb come from Princeton University’s WordNet. Commonness is measured against a corpus of everyday English. Full sources and licences.