Three studies suggested by Johnson-Laird and Oatley's (1989) semantic
analysis of emotion words are reported. The studies were designed to e
xamine the semantic characteristics of words primarily related to happ
iness. The first study asked whether five basic emotion words and othe
r words related to happiness or sadness implied a known cause as' part
of their meaning; the second asked whether happiness was superordinat
e to a number of related words; and the third asked whether happiness
was entailed by those words. Twenty-five senior undergraduates partici
pated in the first and second study. An additional 34 participated in
study three. The first study showed differences among emotion terms in
the degree to which they implied causal awareness, but the results we
re more consistent with a distinction between mood and reactive emotio
ns than with Johnson-Laird and Oatley's (1989) classification. The sec
ond study showed that each of the variants of happiness was a kind of
happiness, but there was more agreement that happiness was a kind of s
ome of the variant words than is consistent with a strict hierarchy. F
inally, the third study provided evidence that some, particularly inte
nsity, variants of happiness were judged to entail happiness, but more
variants were not. The results are discussed in terms of Johnson-Lair
d and Oatley's (1989) and other hierarchical taxonomies. Some points r
elevant to the further clarification of the emotion lexicon are consid
ered.